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AUTOMATIC AND C.B. TELEPHONES No. 367A/A
A wall telephone, in black moulded Bakelite case, comprising anti-sidetone induction coil (ASTIC), high efficiency 'Neophone' hand micro-telephone with patented immersed electrode inset transmitter on
automatic switch cradle; 1000ohms bell ringer with 2.25in (57mm) diameter gongs. Standard British Post Office pattern dial supplied, unless otherwise specified.
This telephone is used on Automatic systems.
No.
367B/A
As No. 367A/A, but with Dial, Dummy No. 5 fitted in place of dial. This
telephone is used on C.B. systems.
|
 |
| 367A/A |
367A/B |
Weight: 5.5 lbs (2.5kgs).
| Height |
Width |
Depth |
Weight (367A/A) |
| 7.75in (197mm) |
9in (229mm) |
5in (127mm) |
6lbs (2.7 kgs) |
Taken from the SIEMENS BROTHERS & CO. LIMITED catalogue No.500/54
When removing the case - undo the two screws on the front of the case and pull them towards you as far as they will go
(they have retainers). The case then opens, to the left, on the
hinges and the screws do not foul any components or wiring. When closing
the case also ensure that the screws are fully withdrawn.
View showing lower case fixing screw. The other screw is at the top of
the telephone
View of rear showing wall fixing holes
Internal view of Bellset part
Internal view of telephone part
Converting a Siemens Brothers No. 367 to
UK Plug and Socket
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Discard any old cordage or wires that are connected to
terminals L1, L2, C and E.
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Remove link between terminals L1 and E.
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Connect a 3.3k resistor to terminals L1 and E.
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Locate the capacitor (to the right of the bell ringer) and
remove the white wire and insulate.
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White wire of the new line cord to terminal L1.
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Red wire of the new line cord to terminal L2.
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Blue wire of the new line cord to terminal C.
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Green wire of the line cord is not used and should be
insulated.
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Connect a Rectifier Element No. 205 or similar to terminals
1 and 2.
This telephone has been converted to plug and socket and the capacitor, which would normally
be the
right of the bell ringer,
has been removed (it is not actually required).
Circuit diagram
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