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Current Comments and G.E.C
Telecommunications
The G.E.C. Telephone Works, Coventry produced a technical
magazine, starting in 1930 and ending in 1967, with a break
during the second world war. The first issue was called
Current Comments and changed name to G.E.C. Telecommunications
in 1946. The first issue was more of a marketing journal but
this changed over the years and the final issue was relatively
technical.
The issues seem to jump from
numbers to volumes to dates and then back to numbers - probably
because they changed the name and started at Volume 1 again!
Generally, only
subscriber apparatus articles have been included, but requests
for other articles will be accepted - please email requests.
Click to view a document or right click to
save to your computer.
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Apparatus and Components
Carrier, Radio and Repeater Equipment
Domestic Radio and Television
Exchange Descriptions
Miscellaneous
P.A.B.X
Remote Control Equipment
Rural Automatic Exchanges
Sound Reproduction Equipment
Telephone Exchange Design
Train systems
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TELEPHONE EXCHANGE DESCRIPTIONS |
Month or issue |
Year |
Page |
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Public exchange system,
Hobart
Central
Automatic Exchange |
April |
1930 |
23 |
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Public exchange system, Singapore |
July |
1930 |
21 |
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London's New Telephone System:
Excess Fee Metering at Fairfield Exchange, Croydon |
Oct |
1930 |
18 |
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Public exchange system,
Preston Multi-Exchange Area |
April |
1931 |
14 |
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Public exchange system,
G.E.C. Contracts Recently Completed:
New Telephone Exchanges for London, Birmingham, Manchester, Glasgow and
Nairobi (Kenya) |
July |
1931 |
25 |
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Public exchange system,
Notes on New Work |
Volume 2, Number 2 |
1931 |
55 |
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G.E.C. Contracts Recently Completed |
Volume 2, Number 3 |
1932 |
91 |
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Public exchange system, Prospect (London) |
Volume 2, Number 4 |
1932 |
123 |
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Public exchange system,
Urmston
Automatic Exchange,
Manchester |
Volume 3, Number 1 |
1933 |
23 |
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Private exchange system, Q.T.E.V.
Queen of Bermuda |
Volume 3, Number 2 |
1933 |
36 |
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Public exchange system,
Wordsworth Automatic Exchange, London |
Volume 3, Number 2 |
1933 |
46 |
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Public exchange system,
Automatic Telephones in the State
of Rampur, India |
Volume 3, Number 3 |
1933 |
68 |
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Public exchange system,
Kensington Automatic Exchange |
Volume 4, Number 1 |
1934 |
16 |
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Public exchange system, Liverpool Trunk Exchange |
Volume 4, Number 3 |
1934 |
31 |
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Public exchange system,
Erdington Automatic Exchange |
Volume 4, Number 4 |
1934 |
88 |
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Public exchange system, New Trunk Exchange at Er Ramle |
Volume 5, Number 1 |
1935 |
12 |
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Private exchange system, S.S.
Queen Mary |
Volume 6, Number 2 |
1936 |
37 |
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Public exchange system,
New Automatic Exchanges installed by The G.E.C. |
Volume 6, Number 2 |
1936 |
57 |
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Public exchange system,
New G.E.C. Exchanges in the
London Area |
Volume 6, Number 3 |
1936 |
80 |
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Public exchange system, Glasgow: New trunk, tandem and central
exchanges |
Volume 7, Number 1 |
1937 |
5 |
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Public exchange system, Coventry Group Centre Switchboard on the
Trunk Telephone System |
Volume 7, Number 3 |
1937 |
107 |
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Public exchange system, First Public Exchange in Siam |
Volume 7, Number 3 |
1937 |
110 |
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Public exchange system, Bangkok, Wat Lieb and Bangrak Exchanges |
Volume 8, Number 1 |
1938 |
5 |
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Public exchange system, Jerusalem, Bethlehem and Tel-Aviv |
Volume 8, Number 2 |
1938 |
41 |
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Private exchange system, S.S. Stratheden |
Volume 8, Number 2 |
1938 |
61 |
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Private exchange system, S.S. Strathallan |
Volume 8, Number 2 |
1938 |
61 |
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Private exchange system, M. S. Dominion Monarch |
Volume 8, Number 2 |
1938 |
61 |
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Public exchange system, Four Automatic Exchanges for India |
Volume 8, Number 3 |
1938 |
98 |
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Public exchange system, Melbourne City West Exchange |
Volume 9, Number 2 |
1939 |
53 |
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Public exchange system, Baghdad, Iraq |
Volume 5, Number 1 |
1950 |
20 |
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Public exchange system, Birmingham (Ashfield), England |
Number 18 |
1953 |
34 |
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Public exchange system, Chittagong, Pakistan |
Number 15 |
1952 |
2 |
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Public exchange system, Coventry (Walsgrave-on-Sowe), England |
Number 16 |
1952 |
4 |
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Public exchange system, Dundee (Broughty Ferry), Scotland |
Number 30 |
1960 |
21 |
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Public exchange system, Edinburgh (George Street), Scotland |
Volume 5, Number 3 |
1950 |
101 |
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Public exchange system, Gainsborough, England |
Volume 5, Number 2 |
1950 |
56 |
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Public exchange system, Humboldt, Canada |
Number 22 |
1956 |
28 |
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Public exchange system, Kuala Lumpur, Malaya |
Number 14 |
1952 |
3 |
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Public exchange system, Kuching, Sarawak |
Number 21 |
1956 |
50 |
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Public exchange system, Leamington Spa, England |
Number 34 |
1966 |
2 |
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Public exchange system, London (Highgate Wood), England |
Number 32 |
1963 |
3 |
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Public exchange system, Lower Hutt, New Zealand |
Volume 5, Number 2 |
1950 |
46 |
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Public exchange system, Palmerston North, New Zealand |
Number 17 |
1953 |
40 |
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Public exchange system, Singapore |
Number 15 |
1952 |
26 |
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Public exchange system, Stoke-on-Trent, England |
Volume 1, Number 2 |
1946 |
93 |
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Public exchange system, Sydney (St. Leonards), Australia |
Number 18 |
1953 |
2 |
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Public exchange system, Sydney (St. Leonards), Australia |
Number 21 |
1956 |
50 |
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Public exchange system, Teheran, Iran |
Volume 6, Number 1 |
1951 |
5 |
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Public exchange system, Wimbledon, England |
Volume 1, Number 3 |
1946 |
141 |
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Private exchange system, S.S. "Arcadia" |
Number 20 |
1955 |
42 |
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Private exchange system, H.M.Y. "Britannia" |
Number 19 |
1954 |
5 |
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Private exchange system, M.V. "Canberra" |
Number 31 |
1962 |
25 |
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Private exchange system, R.M.S. "Caronia" |
Volume 4, Number 1 |
1949 |
5 |
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Private exchange system, H.M.S. "Eagle" |
Number 15 |
1952 |
45 |
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Private exchange system, M.V. "Oriana" |
Number 31 |
1962 |
25 |
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Private exchange system, R.M.S. "Queen Elizabeth" |
Volume 1, Number 3 |
1946 |
109 |
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Private exchange system, for H.M. Ships |
Volume 6, Number 2 |
1947 |
65 |
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Private exchange system, reservation bureau for British Railways |
Number 19 |
1954 |
38 |
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Private exchange system, railway traffic control, applications
and developments, 1939 to 1945 |
Volume 1, Number 1 |
1946 |
5 |
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Private exchange system, railway traffic control, Manchester
(British Railways) |
Volume 1, Number 3 |
1946 |
115 |
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Private exchange system, railway traffic control, Burntisland
(British Railways) |
Volume 6, Number 1 |
1951 |
19 |
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Private exchange system, secretarial telephone answering service |
Number 26 |
1958 |
13 |
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RURAL AUTOMATIC EXCHANGES |
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Rural Automatic Exchanges |
Jan |
1930 |
2 |
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Rural Automatic Exchanges |
July |
1930 |
17 |
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Progress of the R.A.X. in Great
Britain |
April |
1931 |
1 |
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Automatic and Semi-Automatic
Telephone Exchanges for Rural
Districts |
Volume 2, Number 3 |
1932 |
71 |
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Rural Semi-Automatic Telephone Systems:
G.E.C.
Standard
Ten-Line All-Relay Exchange |
Volume 4, Number 2 |
1934 |
45 |
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Rural
Automatic
Exchanges:
British Post Office Unit Auto. No. 12 |
Volume 6, Number 2 |
1935 |
27 |
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Rural Automatic Exchanges: Service in India |
Volume 6, Number 2 |
1936 |
53 |
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Rural Automatic Exchanges: 10 Line |
Volume 7, Number 2 |
1937 |
58 |
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Rural Automatic Exchanges: Tandem working, New Units with
Tie-line Facilities |
Volume 8, Number 1 |
1938 |
21 |
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R.A.X., 50/500 line |
Volume 2, Number 1 |
1947 |
34 |
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R.A.X., 24 line, 25/100 line, and extensible types |
Volume 5, Number 3 |
1950 |
124 |
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R.A.X., applications in Canada |
Number 14 |
1952 |
9 |
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R.A.X., 50/800 line (ST9115) |
Number 27 |
1958 |
40 |
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PRIVATE
AUTOMATIC
EXCHANGES
AND BRANCH EXCHANGES |
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P.A.B.X.,
Private
Automatic
Branch
Exchanges |
Jan |
1930 |
14 |
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P.A.B.X.,
Private
Automatic Branch
Exchanges |
April |
1930 |
13 |
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P.A.B.X., Nos. 5000 and
5100 |
Volume 2, Number 4 |
1932 |
118 |
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P.A.B.X., G.E.C.
Auto-Cordless. A
Simple
and
Economical System for Small
Installations |
Volume 4, Number 3 |
1934 |
77 |
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P.A.B.X., A Simple Unit for
Attendant's use on a single Exchange Line |
Volume 5, Number 3 |
1935 |
84 |
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Private
Automatic
Exchanges:
An all relay unit for small systems (PX1110) |
Volume 6, Number 1 |
1936 |
5 |
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P.A.B.X., A new exchange at Messrs. D. H. Evans store in London |
Volume 7, Number 1 |
1937 |
18 |
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P.A.B.X., A new Exchange at Wellington Station, New Zealand |
Volume 7, Number 3 |
1937 |
81 |
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P.A.B.X., A new Exchange at the Queens Hotel, Leeds, L.M. & S.
Railway Company |
Volume 8, Number 1 |
1938 |
16 |
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P.A.B.X., 2+23 line (PB2101) and 10+49 line (PB2301) |
Volume 5 |
1950 |
78 |
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P.A.B.X., 10+99 line in dustproof cabinet (PB2351) |
Number 24 |
1957 |
21 |
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P.A.B.X., 15+100 line, extensible (PB3200) |
Number 25 |
1957 |
16 |
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P.A.B.X., 3+10 line (PB2202) |
Number 32 |
1963 |
51 |
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P.A.B.X., Cordless (PB4200) |
Number 33 |
1964 |
31 |
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P.A.X., 10 line (PX1211) |
Number 30 |
1960 |
9 |
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P.A.X., 1700 line, at Filton, Bristol |
Number 16 |
1953 |
28 |
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Private exchange system, S.S. "Arcadia" |
Number 20 |
1955 |
42 |
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Private exchange system, H.M.Y. "Britannia" |
Number 19 |
1954 |
5 |
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Private exchange system, M.V. "Canberra" |
Number 31 |
1962 |
25 |
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Private exchange system, R.M.S. "Caronia" |
Volume 4, Number 1 |
1949 |
5 |
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Private exchange system, H.M.S. "Eagle" |
Number 15 |
1952 |
45 |
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Private exchange system, M.V. "Oriana" |
Number 31 |
1962 |
25 |
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Private exchange system, R.M.S. "Queen Elizabeth" |
Volume 1, Number 3 |
1946 |
109 |
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Private exchange system, for H.M. Ships |
Volume 6, Number 2 |
1947 |
65 |
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Private exchange system, reservation bureau for British Railways |
Number 19 |
1954 |
38 |
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Private exchange system, railway traffic control, applications
and developments, 1939 to 1945 |
Volume 1, Number 1 |
1946 |
5 |
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Private exchange system, railway traffic control, Manchester
(British Railways) |
Volume 1, Number 3 |
1946 |
115 |
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Private exchange system, railway traffic control, Burntisland
(British Railways) |
Volume 6, Number 1 |
1951 |
19 |
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Private exchange system, secretarial telephone answering service |
Number 26 |
1958 |
13 |
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CARRIER, RADIO AND REPEATER EQUIPMENT |
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Carrier Current Telephony on high tension transmission networks |
April |
1930 |
6 |
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The First
Installation of Telephone Repeaters in Egypt |
Volume 4, Number 1 |
1934 |
3 |
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New Types of Telephone Repeater Units |
Volume 5, Number 1 |
1935 |
3 |
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Carrier Current Telephony: New
system installed by London and
North-Eastern Railway between
London and Glasgow |
Volume 5, Number 1 |
1935 |
8 |
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Carrier
Current
Telephony.
(Single-channel Set) |
Volume 5, Number 2 |
1935 |
38 |
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G.E.C.
Single-channel
Carrier
Repeater |
Volume 5, Number 3 |
1935 |
67 |
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Developments in Carrier Current
Telephony |
Volume 6, Number 3 |
1936 |
85 |
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Three channel carrier telephone system for aerial lines
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Volume 7, Number 1 |
1937 |
8 |
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Double Modulation as applied to a Twelve-channel Carrier System |
Volume 7, Number 2 |
1937 |
41 |
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Transmission Equipment on International Circuits: St Margret's
bay Repeater Station |
Volume 8, Number 2 |
1938 |
70 |
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Twelve-channel Carrier System for Telephone cable Circuits |
Volume 8, Number 3 |
1938 |
81 |
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Multi-channel Voice Frequency Telegraph System |
Volume 9, Number 1 |
1939 |
5 |
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Cable carrier, applications and development, 1939 to 1945 |
Volume 1, Number 1 |
1946 |
5 |
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Cable carrier, 12 circuit, England-Channel Island system (B.P.O.
No. 6) |
Volume 1, Number 3 |
1946 |
123 |
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Cable carrier, high-frequency attenuator, coaxial (TSL.8002A) |
Volume 1, Number 3 |
1946 |
133 |
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Cable carrier, 12 circuit and 24 circuit (B.P.O. No. 7) |
Volume 2, Number 2 |
1947 |
49 |
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Cable carrier, Anglo-Eireann system (B.P.O. No. 7) |
Volume 2, Number 2 |
1947 |
78 |
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Cable carrier, 12-circuit and 24-circuit group combining filters
(B.P.O. No. 7) |
Volume 3, Number 1 |
1948 |
45 |
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Cable carrier, V.F. telegraph equipment, transistored, 24
circuit (SPO.1403) |
Number 24 |
1957 |
22 |
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Channel equipment with out-of-band signalling (SPO.3006) |
Number 23 |
1957 |
20 |
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Circuits, temperature dependent analysis of... |
Number 34 |
1966 |
21 |
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Equipment practice, C.A.S.E. (B.P.O. type 62) |
Number 33 |
1964 |
21 |
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Multiplex equipment, up to 240 circuit (SPO.1370) |
Number 26 |
1958 |
34 |
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Multiplex equipment, up to 960 circuit, transistored (SPO.1385)
Part 1 |
Number 32 |
1963 |
17 |
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Multiplex equipment, up to 960 circuit, transistored (SPO.1385)
Part 2 |
Number 33 |
1963 |
2 |
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Multiplex equipment, Trans-Canadian (Movan) (SPO.1385) |
Number 34 |
1966 |
47 |
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Open-wire carrier, applications |
Volume 2, Number 1 |
1947 |
23 |
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Open-wire carrier, rural (SPO.1030) |
Number 23 |
1957 |
42 |
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Open-wire carrier, 3 circuit, "T1" equipment |
Volume 1, Number 2 |
1946 |
80 |
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Open-wire carrier, (SPO.1010) |
Number 21 |
1956 |
31 |
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Open-wire carrier, (SPO.1011) |
Number 25 |
1957 |
52 |
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Open-wire carrier, in Peru (SPO.1011) |
Number 29 |
1959 |
53 |
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Open-wire carrier, transistored (SPO.1012) |
Number 30 |
1960 |
29 |
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Open-wire carrier, 12 circuit (SPO.1020) |
Volume 5, Number 2 |
1950 |
57 |
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Open-wire carrier, (SPO.1025) |
Number 25 |
1957 |
41 |
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Open-wire carrier, in Peru (SPO.1025) |
Number 29 |
1959 |
53 |
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Open-wire carrier, v.f. telegraph equipment, 24 channel,
transistored |
Number 24 |
1957 |
22 |
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Picture transmission equipment |
Volume 2, Number 1 |
1947 |
5 |
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Picture transmission equipment |
Volume 5, Number 2 |
1950 |
49 |
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Planning microwave radio relay systems |
Number 34 |
1966 |
32 |
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Power-line carrier, 8 circuit (type N) |
Volume 6, Number 2 |
1951 |
85 |
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Power-line carrier, 1 circuit (type PA) |
Number 14 |
1952 |
22 |
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Power-line carrier, Electricity Supply Board of Ireland system |
Number 19 |
1954 |
9 |
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Power-line carrier, Kitimat-Kemano, Canada (type N) |
Number 21 |
1956 |
45 |
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Power-line carrier, Venezuela |
Number 23 |
1957 |
49 |
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Power-line carrier, Owen Falls-Jinja (Uganda) |
Number 24 |
1957 |
50 |
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Power-line carrier, high speed intertripping equipment
(SPO.2800) |
Number 24 |
1957 |
38 |
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Remote supervisory equipment for radio links |
Number 26 |
1958 |
43 |
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S.H.F. radio equipment, 960 circuit (SPO.5555) |
Number 32 |
1963 |
8 |
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S.H.F. radio equipment, changeover control and baseband
equipment (SPO.5303) |
Number 32 |
1963 |
27 |
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S.H.F. radio equipment, planning a system |
Number 34 |
1966 |
32 |
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Signalling equipment, four frequency dialling system |
Volume 6, Number 1 |
1951 |
6 |
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Signalling equipment, tone, for use with F.M. radio links |
Number 30 |
1960 |
22 |
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Telegraph system, multichannel |
Volume 6, Number 1 |
1951 |
29 |
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Test equipment, for channel panels, automatic distortion
measuring set, Telegraph systems |
Number 32 |
1963 |
36 |
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Test equipment, pulse techniques for communication circuits |
Number 16 |
1953 |
10 |
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Test equipment, transmission constants on carrier telephone
systems |
Volume 5, Number 1 |
1950 |
25 |
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Television relay system, video |
Number 18 |
1953 |
4 |
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Temperature dependent circuits, analysis of |
Number 34 |
1966 |
21 |
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U.H.F. radio equipment, 60 circuit (SPO.5500) |
Number 22 |
1956 |
34 |
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U.H.F. radio equipment, 240 circuit (SPO.5501) |
Number 26 |
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18 |
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U.H.F. radio equipment, television (SPO.5551) |
Number 21 |
1956 |
5 |
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U.H.F. radio equipment, standby protection arrangements
(SPO.5301) |
Number 26 |
1958 |
25 |
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U.H.F. radio equipment, television relay, London-Birmingham,
England |
Volume 2, Number 2 |
1947 |
81 |
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U.H.F. radio equipment, television relay, London-Birmingham,
England |
Volume 5, Number 1 |
1950 |
5 |
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U.H.F. radio equipment, television relay, Switzerland |
Number 20 |
1955 |
21 |
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U.H.F. radio equipment, television relay, London-Windsor
(Canada) |
Number 21 |
1956 |
5 |
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U.H.F. radio equipment, 12 circuit, South West Africa |
Number 26 |
1958 |
48 |
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U.H.F. radio planning a system |
Number 34 |
1966 |
32 |
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V.F. repeater |
Volume 2, Number 1 |
1947 |
28 |
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V.H.F. radio equipment, multicircuit, part 1 |
Volume 4, Number 2 |
1949 |
62 |
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V.H.F. radio equipment, multicircuit, part 2 |
Volume 5, Number 1 |
1950 |
33 |
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V.H.F. radio equipment, 5 circuit (SPO.5050) |
Number 20 |
1955 |
4 |
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V.H.F. radio equipment, in Canada (SPO.5050) |
Number 25 |
1957 |
2 |
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V.H.F. radio equipment, (SPO.5051) |
Number 29 |
1959 |
24 |
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V.H.F. radio equipment, transportable (SPO.5070) |
Number 29 |
1959 |
43 |
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V.H.F. radio equipment, in Kenya (SPO.5050) |
Number 29 |
1959 |
46 |
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V.H.F. radio equipment, 9 circuit (SPO.5060) |
Number 29 |
1959 |
32 |
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V.H.F. radio equipment, Junction |
Number 29 |
1959 |
23 |
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V.H.F. aerial (SPO.5802) |
Number 29 |
1959 |
32 |
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V.H.F. amplifier (SPO.5088) |
Number 31 |
1962 |
63 |
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V.H.F. amplifier (SPO.5090) |
Number 29 |
1959 |
41 |
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V.H.F. transmitter (BRT.108) |
Number 17 |
1953 |
27 |
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Voice amplifier (television relay) |
Volume 5, Number 3 |
1950 |
133 |
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Voice amplifier (television relay) |
Number 18 |
1953 |
4 |
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REMOTE CONTROL EQUIPMENT |
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The Development of Remote
Control Systems |
Jan |
1930 |
7 |
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Supervisory Control Systems |
April |
1930 |
25 |
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A Ten-Point Tandem Supervisory
Control System |
Volume 2, Number 2 |
1931 |
43 |
|
A Survey of the Communication
Requirements of Electric Power
Supply undertakings |
Volume 3, Number 3 |
1933 |
71 |
|
Remote
Supervisory
Control:
G.E.C. Tandem System
installed on Winchester Corporation
Electricity
Supply
Network |
Volume 4, Number 4 |
1934 |
66 |
|
British Industries Fair:
G.E.C.
Exhibit of Remote Supervisory
Control Equipment |
Volume 6, Number 1 |
1935 |
33 |
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Remote Supervisory Control |
Volume 6, Number 3 |
1935 |
70 |
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A New Method in the Remote
Indication of Meter Readings |
Volume 6, Number 2 |
1936 |
42 |
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Remote Supervisory Control: Electricity Supply Systems, Borough
of Hornsey, London |
Volume 7, Number 3 |
1937 |
98 |
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Remote Supervisory Control: Recent Applications |
Volume 8, Number 3 |
1938 |
101 |
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Application and development 1939 to 1945 |
Volume 1, Number 1 |
1946 |
5 |
|
Centralized traffic control (Rhodesian Railways) |
Number 17 |
1953 |
5 |
|
Low-frequency a.c. signalling system |
Number 14 |
1952 |
17 |
|
Power supply, Australian Railways |
Number 22 |
1956 |
32 |
|
Power supply, British Railways (Southern Region) |
Number 23 |
1957 |
25 |
|
Power supply, British Railways (Southern Region) |
Number 31 |
1962 |
3 |
|
Power supply, Athens electricity authority |
Number 20 |
1955 |
40 |
|
Power supply, United Kingdom electricity authority |
Number 27 |
1958 |
3 |
|
Radio Links |
Number 26 |
1958 |
43 |
|
Water Supply, United Kingdom electricity authority |
Number 20 |
1955 |
24 |
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TRAIN CONTROL TELEPHONES AND TRAIN DESCRIBERS |
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A Traffic Control Party Line Telephone System with Selective
Calling by Dial |
April |
1931 |
3 |
|
Train Describers: New System installed in Glasgow by the L.M. &
S. Railway |
Volume 3, Number 3 |
1933 |
51 |
|
Train Describers: New Main Line Equipment installed by L. & N.E.
Railway |
Volume 4, Number 3 |
1934 |
59 |
|
Selective Ringing Telephone System: For Train Control
|
Volume 6, Number 3 |
1936 |
69 |
|
Selective Ringing Telephone System: |
Volume 7, Number 2 |
1937 |
50 |
|
Selective Ringing Telephone System: Newcastle District, London
and North-Eastern Railway |
Volume 7, Number 3 |
1937 |
101 |
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SOUND REPRODUCTION EQUIPMENT |
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An All-Electric Gramophone Reproducer |
Jan |
1930 |
14 |
|
Breakdown Message Speech Transmission System of the London
Underground Railways |
Volume 2, Number 3 |
1932 |
78 |
|
The Distribution of Radio Broadcast Programmes at Audio
Frequency |
Volume 2, Number 4 |
1932 |
127 |
|
G.E.C. Broadcast Call System |
Volume 3, Number 2 |
1933 |
27 |
|
Radio Relay Systems: Application overseas for relaying Empire
Broadcast Programmes |
Volume 4, Number 1 |
1934 |
23 |
|
Audio Frequency Distribution of Short Wave Programmes: Radio
Relay Equipment for overseas service |
Volume 4, Number 2 |
1934 |
48 |
|
Radio Relay System at Accra, Gold Coast |
Volume 5, Number 2 |
1935 |
53 |
|
Loudspeaking Equipment at Euston Station, London, Midland and
Scottish Railway |
Volume 6, Number 1 |
1936 |
19 |
|
Loudspeaking Equipment at Birmingham Fire Station |
Volume 6, Number 3 |
1936 |
91 |
|
Public address system, Barry Island, Wales |
Volume 5, Number 3 |
1950 |
143 |
|
Public address system, Glasgow, Scotland |
Number 18 |
1953 |
44 |
|
Receivers, broadcast, export model (BC.5082) |
Volume 5, Number 1 |
1950 |
32 |
|
Receivers, broadcast, export models |
Number 14 |
1952 |
30 |
|
Receivers, broadcast, radio and television, at 1953 Radio Show |
Number 18 |
1953 |
32 |
|
Receivers, broadcast, industrial (BCS.2353/4) |
Number 19 |
1954 |
44 |
|
Receivers, broadcast, radio and television |
Number 20 |
1955 |
28 |
|
Receivers, broadcast, radio and television |
Number 21 |
1956 |
52 |
|
Receivers, communication, 1.5 to 33 Mc/s (BRT.400) |
Volume 3, Number 1 |
1948 |
26 |
|
Receivers, improvements in design (BRT.400) |
Number 16 |
1953 |
40 |
|
Receivers, B.B.C. monitoring service (BRT.400) |
Number 18 |
1953 |
14 |
|
Receivers, single frequency (BRT.410) |
Volume 4, Number 1 |
1949 |
33 |
|
Sound reproducing equipment, mobile amplifier, 3 watt |
Volume 5, Number 2 |
1950 |
85 |
|
Sound reproducing equipment, amplifier, 30 watt (BCS.2430) |
Number 16 |
1953 |
31 |
|
Sound reproducing equipment, high quality loudspeaker |
Number 19 |
1954 |
43 |
|
Sound reproducing equipment, amplifier, 10 watt (BCS.2409L) |
Number 22 |
1956 |
52 |
|
Sound reproducing equipment, recent developments |
Number 24 |
1957 |
45 |
|
Sound reproducing equipment, underground listening |
Number 27 |
1958 |
54 |
|
Sound reproduction system, United Nations conference, Singapore |
Volume 5, Number 1 |
1950 |
19 |
|
Sound reproduction system, council chamber, Singapore |
Volume 6, Number 1 |
1951 |
44 |
|
Sound reproduction system, hotel, Singapore |
Number 15 |
1952 |
46 |
|
Sound reproduction system, S.S. "Cairndhu" and S.S. "Cairn Gowan" |
Number 15 |
1952 |
46 |
|
Relay systems, television, London to Birmingham, England |
Volume 2, Number 2 |
1947 |
81 |
|
Relay systems, television, London to Birmingham, England |
Volume 5, Number 1 |
1950 |
5 |
|
Relay systems, television, London, England, to South Wales |
Number 18 |
1953 |
4 |
|
Relay systems, television, Switzerland |
Number 20 |
1955 |
21 |
|
Relay systems, television, Switzerland |
Number 30 |
1960 |
52 |
|
Transmitter, M.F., H.F., and V.H.F., 100 and 150 watts |
Volume 6, Number 2 |
1951 |
72 |
|
Transmitter, H.F., 1 kW, communication and broadcast (BRT.1002) |
Volume 5, Number 3 |
1950 |
106 |
|
Transmitter-receiver, H.F., transportable |
Volume 4, Number 1 |
1949 |
12 |
|
V.H.F. radiotelephone, applications and development, 1939 to
1945 |
Volume 1, Number 1 |
1946 |
5 |
|
V.H.F. radiotelephone, short range communication methods |
Volume 1, Number 2 |
1946 |
61 |
|
V.H.F. radiotelephone, Guernsey ambulance service |
Volume 2, Number 1 |
1947 |
25 |
|
V.H.F. radiotelephone, Royal visit to South Africa |
Volume 2, Number 2 |
1947 |
76 |
|
V.H.F. radiotelephone, new equipment |
Volume 3, Number 1 |
1948 |
5 |
|
V.H.F. radiotelephone, systems |
Volume 6, Number 1 |
1951 |
6 |
|
V.H.F. radiotelephone, design considerations |
Number 17 |
1953 |
16 |
|
V.H.F. radiotelephone, North Thames Gas Board, England |
Volume 5, Number 2 |
1950 |
86 |
|
V.H.F. radiotelephone, Portugal |
Number 15 |
1952 |
35 |
|
V.H.F. radiotelephone, at London Airport, England |
Number 18 |
1953 |
22 |
|
V.H.F. radiotelephone, at Coventry, England |
Number 19 |
1954 |
42 |
|
V.H.F. radiotelephone, ship to shore link, Hong Kong |
Number 20 |
1955 |
30 |
|
|
|
|
|
|
|
|
|
|
|
DOMESTIC RADIO RECEIVERS AND TELEVISION |
|
|
|
|
Empire Broadcasting: A New Supersonic Heterodyne Receiver for
wave lengths between 13 and 700 Metres |
July |
1931 |
16 |
|
Empire Broadcasting: G.E.C. Overseas Model Multi-Wave
Super-Heterodyne Receiver for A.C. Mains |
Volume 3, Number 2 |
1933 |
40 |
|
G.E.C. Radio: The New "Overseas 7" Short and Medium Wave
Receiver for A.C. Mains |
Volume 4, Number 2 |
1934 |
35 |
|
G.E.C. Radio: The New "Fidelity All-Wave" Receiver |
Volume 6, Number 1 |
1936 |
8 |
|
G.E.C. Radio: The "Fidelity All-Wave" Series |
Volume 7, Number 2 |
1937 |
64 |
|
An Outline of the Principles of Television with reference to
G.E.C. Receivers |
Volume 7, Number 3 |
1937 |
88 |
|
G.E.C. Radio: The "Fidelity All-Wave" Super Ten Radio |
Volume 8, Number 2 |
1938 |
55 |
|
|
|
|
|
|
|
|
|
|
|
TELEPHONE APPARATUS and COMPONENTS |
|
|
|
|
Wiper Cords for Two-Motion Selector Switches |
Jan |
1930 |
9 |
|
A Variable Frequency Oscillator |
Jan |
1930 |
10 |
|
A Hand-combined Telephone for Common Battery Systems |
Jan |
1930 |
16 |
|
Dials,
The Automatic Dial Switch |
Jan |
1930 |
17 |
|
The Rotary Line Switch |
April |
1930 |
1 |
|
Impregnated Paper Dielectric Condensers |
April |
1930 |
4 |
|
Telephone,
The GECOPHONE Hand-combination Telephone |
April |
1930 |
20 |
|
Telephone,
The Switching Bell Set |
July |
1930 |
14 |
|
Telephone,
The GECOPHONE Hand-combination Telephone |
Oct |
1930 |
1 |
|
A New Two-Position Relay |
Oct |
1930 |
17 |
|
Telephone,
A New Convertible Telephone |
Jan |
1931 |
5 |
|
Telephone,
The Subscriber's Telephone: Recent Improvements in Design |
Jan |
1931 |
11 |
|
Telephones, Intercommunication System with Loudspeaking Master
Stations |
Jan |
1931 |
21 |
|
The G.E.C. Anti-Sidetone Circuit |
April |
1931 |
12 |
|
The New Standard Terminal Strip |
April |
1931 |
22 |
|
Dials, Dial Speed Tester |
April |
1931 |
23 |
|
Improvements in Ringer Design |
April |
1931 |
26 |
|
Improvements in the Manufacture of Telephone Cords |
July |
1931 |
14 |
|
The Subscriber's Amplifier |
July |
1931 |
22 |
|
A New Travelling Ladder |
Volume 2, Number 2 |
1931 |
52 |
|
A Transmission Measuring Set Type T.M.2 |
Volume 2, Number 3 |
1932 |
63 |
|
Notes on the Design of Portable Routine Testers for Automatic
Telephone Exchanges |
Volume 2, Number 3 |
1932 |
84 |
|
Telephone Coin Collecting Boxes - Part 1 |
Volume 2, Number 4 |
1932 |
99 |
|
The New "Minor" Relay |
Volume 2, Number 4 |
1932 |
113 |
|
Telephone Coin Collecting Boxes - Part 2 |
Volume 2, Number 5 |
1932 |
138 |
|
Keysender,
A Keysender for Private Branch Exchanges |
Volume 3, Number 1 |
1933 |
3 |
|
Telephone,
Coloured Telephones |
Volume 3, Number 1 |
1933 |
9 |
|
A New Tuned Vibratory Interrupter |
Volume 3, Number 1 |
1933 |
11 |
|
Relays,
A New Sensitive High Speed Relay |
Volume 3, Number 2 |
1933 |
32 |
|
Telephone, Miniature Telephone |
Volume 3, Number 2 |
1933 |
45 |
|
A New Audio Frequency Oscillator |
Volume 3, Number 3 |
1933 |
65 |
|
An Improved Ringing Vibrator |
Volume 3, Number 3 |
1933 |
70 |
|
Telephones, The Subscribers Telephone - Improvement in Design |
Volume 4, Number 1 |
1934 |
11 |
|
Keysender,
A New Mechanical Keysender |
Volume 4, Number 2 |
1934 |
40 |
|
A New and Improved Tension Gauge |
Volume 4, Number 4 |
1933 |
74 |
|
A New Portable Transmission Measuring Set |
Volume 4, Number 4 |
1934 |
83 |
|
Telephone,
A Loudspeaking Telephone for Private Automatic Systems |
Volume 5, Number 1 |
1935 |
17 |
|
Keysender,
The G.E.C. Mechanical Keysender |
Volume 5, Number 1 |
1935 |
22 |
|
A New Mains-operated Ringing Vibrator Unit |
Volume 5, Number 2 |
1935 |
44 |
|
Telephone,
Magneto Telephones for use in Mines |
Volume 5, Number 2 |
1935 |
47 |
|
Paper-Dielectric Condensers |
Volume 5, Number 2 |
1935 |
56 |
|
Telephones, for use in Apartment Flats |
Volume 5, Number 3 |
1935 |
63 |
|
New Standard Vibrators |
Volume 5, Number 3 |
1935 |
78 |
|
Relays,
A New High-Speed Relay |
Volume 5, Number 3 |
1935 |
80 |
|
Uniselectors,
Both-way Uniselector |
Volume 5, Number 3 |
1935 |
82 |
|
The British Post Office Standard Tension Gauge |
Volume 6, Number 3 |
1936 |
88 |
|
Dials,
Production of the Automatic Dial No. 10 |
Volume 6, Number 3 |
1936 |
92 |
|
Telephone, A Battery Call Telephone for use in Incendive
Atmospheres |
Volume 7, Number 1 |
1937 |
22 |
|
Extension Telephone System |
Volume 8, Number 1 |
1938 |
11 |
|
A New Magneto Extension Bell |
Volume 8, Number 1 |
1938 |
25 |
|
Service Telephones in Fountain House, Park Lane, London |
Volume 8, Number 3 |
1938 |
112 |
|
Telephone, Muraphone, A New Telephone for wall mounting
|
Volume 9, Number 1 |
1939 |
22 |
|
Telephones on Passenger Trains: Equipment fitted on the
Coronation Scot |
Volume 9, Number 1 |
1939 |
27 |
|
A Combined Linefinder and Allotter Switch |
Volume 9, Number 1 |
1939 |
40 |
|
Extension Telephone Schemes |
Volume 9, Number 2 |
1939 |
65 |
|
All Relay Keysender for use on P.A.B.X. and main exchanges |
Volume 9, Number 2 |
1939 |
73 |
|
Telephones: In the London Foreign Exchange market |
Volume 9, Number 2 |
1939 |
79 |
|
An Improved Switch of the Pushbutton Type |
Volume 9, Number 2 |
1939 |
85 |
|
An Emergency Call System |
Volume 9, Number 2 |
1939 |
86 |
|
Telephone, pushbutton intercommunication (ITL1 and ITL2) |
Volume 3, Number 1 |
1948 |
34 |
|
Telephone, Gecophone Junior (MTL1) |
Volume 3, Number 1 |
1948 |
41 |
|
Telephone, G.E.C. 1000 |
Number 22 |
1956 |
19 |
|
Telephone, loudspeaking, for use with P.A.X. (STL15) |
Number 24 |
1957 |
5 |
|
Telephone, New Gecophone (G.E.C. 706) |
Number 29 |
1959 |
4 |
|
Telephone, loudspeaking, intercommunication (ITL3) |
Number 30 |
1960 |
3 |
|
Telephone, pushbutton, extension (STL17) - Planset N625 |
Number 31 |
1962 |
41 |
|
Telephone, application and development, 1939 to 1945 |
Volume 1, Number 1 |
1946 |
15 |
|
Telephone, routine tester for |
Volume 1, Number 1 |
1946 |
79 |
|
Telephone, circuits and performance |
Volume 4, Number 2 |
1947 |
79 |
|
Telephone, a new high performance (1000 TER Telephones) |
Number 22 |
1956 |
5 |
|
Telephone, line assessment for use with "G.E.C. 706" |
Number 33 |
1964 |
13 |
|
Telephone, intercommunication equipment for Divers |
Number 19 |
1954 |
45 |
|
Telephone dial, trigger No. 12 (DLI100 series) |
Volume 3, Number 1 |
1948 |
15 |
|
Telephone dial, trigger (DIA4 series) |
Number 30 |
1960 |
39 |
|
Keysender, relay |
Volume 5, Number 2 |
1950 |
88 |
|
Keysender, capacity storage |
Volume 1, Number 2 |
1946 |
98 |
|
Keysender, capacity storage |
Number 31 |
1962 |
20 |
|
SE50 Two-motion selector, description |
Volume 6, Number 2 |
1951 |
51 |
|
SE50 Two-motion selector, further notes |
Number 15 |
1952 |
43 |
|
SE50 Two-motion selector, battery testing group selector |
Number 16 |
1953 |
32 |
|
SE50 Two-motion selector, interruptor springset design |
Number 17 |
1953 |
48 |
|
SE50 Two-motion selector, uniformity in adjustment |
Number 18 |
1953 |
38 |
|
SE50 Two-motion selector, applications |
Number 21 |
1956 |
50 |
|
SE50 Two-motion selector, as linefinder |
Number 22 |
1956 |
23 |
|
Uniselectors, subscriber's line circuit |
Volume 5, Number 1 |
1950 |
13 |
|
Uniselectors, heavy duty |
Volume 3, Number 1 |
1948 |
20 |
|
Uniselectors, economy and efficiency in subscriber's line
circuits |
Volume 1, Number 3 |
1946 |
129 |
|
Relays, miniature (MRL1) |
Volume 1, Number 3 |
1946 |
138 |
|
Relays, tropicalisation |
Volume 4, Number 1 |
1949 |
23 |
|
Relays, power circuit indicating |
Volume 5, Number 3 |
1950 |
144 |
|
Relays, ratchet, 2 cam (RRL3) |
Number 29 |
1959 |
12 |
|
Charging meter, 5 digit, exchange (ME2000 series) |
Number 24 |
1957 |
17 |
|
Charging meter, clock type, subscriber's premises |
Number 33 |
1964 |
9 |
|
Rotary switch, multi-position |
Volume 5, Number 1 |
1950 |
41 |
|
Semiconductors, germanium diodes |
Volume 5, Number 3 |
1950 |
131 |
|
Semiconductors, germanium diodes and transistors |
Number 15 |
1952 |
29 |
|
Semiconductors, manufacture and testing of germanium diodes |
Number 17 |
1953 |
34 |
|
Semiconductors, manufacture and testing of transistor type GET.1 |
Number 18 |
1953 |
16 |
|
|
|
|
|
|
|
|
|
|
|
MISCELLANEOUS |
|
|
|
|
Foreword |
Jan |
1930 |
1 |
|
The Elimination of Relay Contact Troubles |
Jan |
1930 |
5 |
|
The Director System of Automatic Telephony |
Jan |
1930 |
18 |
|
The Hamilton "M" Type Totalisator |
April |
1930 |
26 |
|
An Improved Form of Terminal Unit for Lead Covered Air Space
Paper Core Cables |
April |
1930 |
1 |
|
Remote Control of Selective Switches in Automatic Telephony |
July |
1930 |
5 |
|
Loading Coils |
Oct |
1930 |
4 |
|
Automatic Telephony: An Improved method of Line Switching |
Jan |
1931 |
1 |
|
Cairo-Tanta-Alexandria Loaded Trunk Telephone Cable |
Jan |
1931 |
10 |
|
Telephones, Intercommunication System with Loudspeaking Master
Stations |
Jan |
1931 |
21 |
|
The G.E.C. Anti-Sidetone Circuit |
April |
1931 |
12 |
| A
New Insulating Material for Switchboard Cables |
July |
1931 |
3 |
|
The Microscope in the Telephone industry |
July |
1931 |
8 |
|
Improvements in the Manufacture of Telephone Cords |
July |
1931 |
14 |
|
An Invitation |
Volume 2, Number 2 |
1931 |
,35 |
|
Measurement of Transmission Loss of Line Transformers at Voice
Frequencies |
Volume 2, Number 2 |
1931 |
39 |
| A
Method of Calculating Balances for Unloaded Telephone Circuits |
Volume 2, Number 4 |
1932 |
107 |
|
Progress in the Telephone Industry |
Volume 2, Number 4 |
1932 |
122 |
|
Characteristics of Modern Microphones |
Volume 2, Number 5 |
1932 |
143 |
|
The Testing of Telephone Transmitters |
Volume 2, Number 5 |
1932 |
152 |
|
Recent Development of the British Trunk Telephone Network |
Volume 3, Number 1 |
1933 |
14 |
|
Group Telephone Service: New System to be adopted by the British
Post Office |
Volume 4, Number 1 |
1934 |
8 |
|
G.E.C. Telephone Equipment for Iraq-Mediterranean oil pipe line |
Volume 5, Number 1 |
1935 |
7 |
|
Notes on New Work |
Volume 5, Number 2 |
1935 |
57 |
|
Automatic Telephone Equipment in Siam |
Volume 5, Number 3 |
1935 |
86 |
|
Automatic Vote - Recording Equipment installed in Middlesex
County Hall |
Volume 6, Number 1 |
1936 |
12 |
|
Some Notes on New Work |
Volume 6, Number 1 |
1936 |
16 |
|
Automatic Telephone Traffic Recording |
Volume 6, Number 1 |
1936 |
23 |
|
Loading Equipment for Telephone Cables |
Volume 6, Number 2 |
1936 |
45 |
|
A Gas Filled Arrestor for Telephone Lines |
Volume 7, Number 1 |
1937 |
28 |
|
Portable Transmission Measuring Set |
Volume 7, Number 2 |
1937 |
71 |
|
Current G.E.C. Contracts |
Volume 8, Number 1 |
1938 |
27 |
|
Empire Exhibition in Glasgow: Sound Reproductive Equipment |
Volume 8, Number 2 |
1938 |
48 |
|
50-cycle Current used on Inter-exchange Connections |
Volume 9, Number 1 |
1939 |
15 |
|
G.E.C. Activities in Communications |
Volume 9, Number 1 |
1939 |
31 |
|
Catalogue numbering system, revised |
Volume 1, Number 3 |
1946 |
122 |
|
Central maintenance training school, B.P.O. |
Volume 2, Number 2 |
1947 |
69 |
|
Data processing system (I.C.T.1301) |
Number 31 |
1962 |
28 |
|
Data transmission system, high speed (DT.10) |
Number 33 |
1964 |
42 |
|
Decibels, addition of power levels in |
Number 19 |
1954 |
35 |
|
Decibels, subtraction of power levels in |
Number 24 |
1957 |
52 |
|
Equipment for armed forces, communications |
Volume 1, Number 1 |
1946 |
30 |
|
Equipment for armed forces, electronics |
Number 17 |
1953 |
4 |
|
Exhibitions, British Industries Fair, 1947 |
Volume 2, Number 1 |
1947 |
41 |
|
Exhibitions, Farnborough (N.A.T.O.) |
Number 17 |
1953 |
4 |
|
Exhibitions, Cairo Agriculture and Industries Trade Fair |
Volume 4, Number 1 |
1949 |
40 |
|
Exhibitions, G.E.C. research laboratories |
Volume 4, Number 2 |
1949 |
53 |
|
Exhibitions, Railway congress |
Number 19 |
1954 |
41 |
|
Exhibitions, Bangkok chamber of commerce fair |
Number 23 |
1957 |
48 |
|
Mathematika |
Volume 2, Number 2 |
1947 |
82 |
|
Progress and application, number 1 |
Volume 5, Number 3 |
1950 |
146 |
|
Progress and application, number 2 |
Volume 6, Number 1 |
1951 |
45 |
|
Progress and application, number 3 |
Volume 6, Number 2 |
1951 |
100 |
|
Retirement of Mr. R. E. Robinson, Assistant Managing Director |
Number 30 |
1960 |
2 |
|
|
|
|
|
|
|
|
|
|
|
TELEPHONE EXCHANGE DESIGN |
|
|
|
|
Applications and development, 1939 to 1945 |
Volume 1, Number 1 |
1946 |
9 |
|
Subscriber's line circuits, economy and efficiency |
Volume 1, Number 3 |
1946 |
129 |
|
Subscriber's line circuits, new facilities and equipment |
Number 15 |
1952 |
15 |
|
Subscriber's line circuits, assessment for use with "G.E.C. 706"
telephone |
Number 33 |
1964 |
13 |
|
Cabinets for U.A.X. |
Volume 4, Number 1 |
1949 |
39 |
|
Automatic switching of telegraph lines |
Volume 4, Number 2 |
1949 |
41 |
|
Dialling system, 4 frequency |
Number 14 |
1952 |
33 |
|
Dialling system, V.F. |
Number 20 |
1955 |
43 |
|
Suppression of interference from telephone apparatus |
Number 15 |
1952 |
36 |
|
Calling line identification |
Number 16 |
1953 |
5 |
|
Battery testing group selector |
Number 16 |
1953 |
32 |
|
Interworking between Strowger and rotary systems |
Number 17 |
1953 |
40 |
|
Partial call queuing on auto-manual sleeve-control switchboards |
Number 18 |
1953 |
24 |
|
Release conditions in automatic exchanges |
Number 18 |
1953 |
35 |
|
Photographic meter-reading recorder |
Number 20 |
1955 |
16 |
|
Photographic meter-reading recorder |
Number 30 |
1960 |
16 |
|
Subscriber-to-subscriber trunk dialling |
Number 20 |
1955 |
31 |
|
Subscriber-to-subscriber trunk dialling in Great Britain |
Number 28 |
1959 |
4 |
|
Subscriber-to-subscriber trunk dialling equipment |
Number 28 |
1959 |
36 |
|
Power plant, medium exchanges |
Number 21 |
1956 |
25 |
|
Power plant, medium to large exchanges |
Number 27 |
1958 |
50 |
|
Ringing dynamotor |
Number 22 |
1956 |
30 |
|
Electronic switching, introduction |
Number 23 |
1957 |
4 |
|
Electronic switching, cold cathode voltage transfer circuits,
part 1 |
Number 23 |
1957 |
6 |
|
Electronic switching, cold cathode voltage transfer circuits,
part 2 |
Number 24 |
1957 |
30 |
|
Electronic switching, joint announcement by B.P.O. and British
telephone manufacturers |
Number 25 |
1957 |
25 |
|
Electronic switching, EDICT and EDIT |
Number 25 |
1957 |
26 |
|
Electronic switching, automatic exchanges |
Number 27 |
1958 |
32 |
|
Electronic switching, register-translator |
Number 28 |
1959 |
14 |
|
Electronic switching, experimental exchange |
Number 30 |
1960 |
14 |
|
Electronic switching, exchange for London (Highgate Wood),
England |
Number 32 |
1963 |
3 |
|
Electronic switching, RS31, at Leamington Spa, England |
Number 34 |
1966 |
2 |
|
Changed number announcer |
Number 25 |
1957 |
34 |
|
Centralized service observation system |
Number 26 |
1958 |
4 |
|
Group selector rack with grading facilities for 100-outlet
selectors |
Number 26 |
1958 |
10 |
|
Register-translator, electronic |
Number 28 |
1959 |
3 |
|
Register-translator, routing by |
Number 28 |
1959 |
8 |
|
Register-translator, electronic, circuit design |
Number 28 |
1959 |
14 |
|
Annoyance-hold interception equipment |
Number 30 |
1960 |
25 |
|
Unlimited dial pulse repetition |
Number 30 |
1960 |
42 |
|
Single voice frequency signalling equipment |
Number 31 |
1962 |
50 |
|
Meter pulse supplies, S.T.D. systems |
Number 32 |
1963 |
45 |
|
Artificial traffic equipment |
Number 32 |
1963 |
58 |
|
|
|
|
|
|
|
|
|
|
Current Comments and