TELEPHONE No. 133 | |||||||
Laryngaphone wall telephone. These were used in noisy areas. Used on CB and Auto systems. The CB variant had a notice frame in place of the dial. Handset is a Telephone No. 186, which used a Transmitter Inset No. 11. Circuit diagram - N233 (Dated 1931). Possibly made by TMC.
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Last revised: January 31, 2023FM |