AUTOMATIC AND CB TELEPHONES
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; 1000 ohms ringer with 2.25 in (57mm) diameter gongs. Standard British Post Office pattern dial supplied, unless otherwise specified.
As No. 367A/A, but with Dial, Dummy No. 5 fitted in place of dial.
Weight: 5.5 lbs (2.5kgs).
|| 9in (229mm)
||6lbs (2.7 kgs)
From 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. The case then opens 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the case also ensure that the screws are fully withdrawn.
This is an internal view of the telephone.
It 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).
Converting a Siemens Brothers No. 367 to
Plug and Socket
Discard any old cordage or wires that are connected to
terminals L1, L2, C and E.
Remove link between terminals L1 and E.
Connect a 3.3k resistor to terminals L1 and E.
Locate the capacitor (to the right of the bell ringer) and
remove the white wire and insulate.
White wire of the new line cord to terminal L1.
Red wire of the new line cord to terminal L2.
Blue wire of the new line cord to terminal C.
Green wire of the line cord is not used and should be
Connect a Rectifier Element No. 205 or similar to terminals
1 and 2.