ATM TELEPHONE L.11280

 


TESTING HAND TELEPHONE

Testing Hand-Telephone (B.P.O. No. 80 Mark 236).

Used for testing automatic telephone exchange equipment. 

Comprising:-
Cast aluminium case fitted with receiver, inset transmitter, 0.3 microfarad capacitor, and press key for closing the circuit.

Includes two-way cord for connecting to test plug.

 


Taken from the 1951 ATM Catalogue

 
 
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Last revised: November 27, 2020

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