TELEPHONE No. 186
Laryngaphone handset.

For use with Telephone No's 133, 135 & 188.

Laryngaphones where used in noisy environments.  Many wall mounted models were used in Zeppelins and the like.

Uses a Transmitter Inset No. 11.

Circuit diagram - N286.

Probably made by TMC.

 

 
 
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Last revised: February 01, 2023

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