TELEPHONE No. 80
Metal cased hand held test telephone for in telephone exchanges.  Fitted with press switch and loop suspension.

No dial is fitted to these telephones.

Picture to the right shows a Mark 236 (1928 model).

Telephone No. 80A - Handset telephone similar to No. 80 but provided with a separate speaking battery feed to permit its use on dry loop circuits. Required initially for maintenance officers on 2 V.F. circuits.

Telephone includes (1928):-
1 x Condenser, M.C., No. 83.
1 x Cord, Instrument, No. 249.
1 x Diaphragm No. 12.
1 x Earpiece No. 13.
1 x Transmitter, Inset, No. 2.

To be requisitioned separately:-
1 x Plug No. 310, 409 or other suitable plug.

Telephone includes (1946 and 1956):-
1 x Coil, Induction. No. 26.
1 x Mouthpiece No. 15 or Mouthpiece No. 18 (Mark 5).
1 x Condenser and Resistor, No. 3.
1 x Receiver, Inset, No. 1L.
1 x Cord, Instrument, No. 2/87F, Black, 48".
1 x Transmitter, Inset, No. 13.

Circuit diagram - N 180.
Diagram - A.T. 205.
Diagram - C.D. 814 (Mark 5)

Superseded by the Telephone No. 280.

ATM made some of these:-
Tele No. 80 Mk 236
Tele No. 80 Mk 5
Tele No. 80A

 

Telephone No. 80 Mark 5 - Front and back


Telephone No. 80A

 

 
 
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Last revised: November 27, 2020

FM