Transmitter No. 1
Solid back transmitter. Also known as a Mark 4001.
Standard Transmitter for C.B. telephones.
Uses a Mouthpiece No. 4.
Invented by an American called A. G. White.
Click here for more details.
Telephone mouthpiece sanitisers
Drawing - 7697.
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| Transmitter No. 2 Standard
Transmitter for L.B. telephones.
Uses a Mouthpiece No. 4.
Telephone mouthpiece sanitisers
Click here for
component parts |
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| Transmitter No. 3 L.B. Deckert
transmitter.
Found fitted to Telephones No. 17,
19 and
21.
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| Transmitter No. 4 L.B. Breastplate
transmitter used by operators on primary battery trunk exchanges.
Fitted with a Mouthpiece No. 1.
Superseded by the Transmitter No. 23A
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| Transmitter No. 5 C.B. Breastplate
transmitter used by operators on secondary battery trunk exchanges.
Includes:-
1 x Connection, Mouthpiece, No. 6.
1 x Loop for Bands, Transmitters, Breast Plate, Slotted Hole.
1 x Mouthpiece No. 6 (Mk. N.T. 9).
18" Web, Non-elastic, No.2, Grey.
Superseded by the Transmitter No. 23A
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| Transmitter No. 6 L.B. Transmitter
used on Telephones No. 3.
Uses a Mouthpiece No. 5.
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| Transmitter No. 8 Used on C.B.
exchanges with Arm Transmitter No. 2.
Fitted with a Mouthpiece No.
4.
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| Transmitter No. 9 Used on Telephone
No. 47.
Fitted with a Mouthpiece No. 4.
Superseded by Transmitter No. 1 with an Adaptor, Transmitter.
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| Transmitter No. 10 L.B. type for
Telephone No. 28, except Mark 234.
Includes:-
1 x Transmitter, Inset, No. 3.
To be requisitioned separately:-
1 x Connection, Mouthpiece, No. 1.
1 x Mouthpiece No. 1.
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| Transmitter No. 11 Used on ATM Co's
automatic telephones.
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| Transmitter No. 12 Used on ATM Co's
automatic telephones.
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| Transmitter No. 13 C.B. transmitter
for use on Telephone No. 57. Fitted with a
Mouthpiece No. 4. |
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| Transmitter No. 16 L.B. transmitter
used on Electrophone Stage Circuits.
Fitted with an Angelini type
transmitter and used a Mouthpiece No. 13.
The Mark 234 (not an Angelini) model used a Transmitter, Inset No. 9.
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| Transmitter No. 17 Local Battery
transmitter fitted on Tables,
Electrophone, NT.
Fitted with a Diaphragm No. 16 or No. 20 and a Mouthpiece No. 4.
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| Transmitter No. 21 This is a single
bell gong that is fitted to Mechanisms No. 13 and 14. The gong has
a carbon granule container attached.
Used for
signalling deposits of coin in prepayment coin collecting boxes.
The operator could hear the bell or gong sound via this transmitter.
This transmitter includes a Bell Gong No. 18.
Drawing - 63932.
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| Transmitter No. 22
Used on C.B. and L.B. telephones etc.
Introduced early 1930's and superseded the Transmitter No. 1 and 2.
Includes:-
1 x Mouthpiece No. 16.
1 x Transmitter, Inset, No. 13.
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| Transmitter No. 23 C.B. or L.B.
moulded Breast Plate type with switch facility (later supplies
distinguished from No. 23A by circular yellow spot).
The switch disconnected battery feed to the transmitter, when the
mouthpiece was moved away from the mouth.
Transmitter No. 23 includes:-
1 x Loop for Bands, Transmitters, Breast Plate, Slotted Hole.
1 x Mouthpiece No. 17 or No. 19.
1 x Transmitter, Inset, No. 13A.
18" Web, Non-elastic, No. 2, Grey. Transmitter No. 23A includes:-
1 x Transmitter, Inset, No. 13AA.
Otherwise as for Transmitter No. 23. To be requisitioned separately:-
1 x Cord, Instrument 4/12A, Brown, 48".
Elastic for Loops, Breast Plate, Transmitters.
Supersedes Transmitter No. 5A. Used with a Receiver, Headgear No.
10A (See picture to right). Drawings - 62807 and 62256.
Click here for more information |
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| Transmitter No. 24 This is a housing
that will accept a Transmitter No. 10B. It plugged into the side
of a special WW2 gas mask to allow speech whilst wearing the gas mask.
Made by Siemens Brothers.
Introduced circa 1938.
Drawing - 62446.
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| Transmitter No. 25 This is a single
bell gong that is fitted to Mechanisms No. 13 and 14. The gong has
a carbon granule container attached.
Used for
signalling deposits of coin in prepayment coin collecting boxes.
The operator could hear the bell or gong sound via this transmitter.
This transmitter includes a Bell Gong No. 18.
Drawing - 63563.
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