ATM TELEPHONE L.11280

 


TESTING HAND TELEPHONE

Testing Hand-Telephone (B.P.O. No. 80 Mk. 236). 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: October 04, 2012

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