TELEPHONE No. 42
A simple portable, Magneto, telephone using a Telephone No. 34 as the handset.
Previously known as the Portable Telephone with Generator and Vibrator.
This telephone uses a Vibrator (buzzer) to indicate incoming calls.
The 3-contad Key on the Micro Telephonemust be depressed for both speaking and listening.
Calls are received on the Vibrator, or"Buzzer," which is in circuit when the 3-contact Key is in the normal position.
Requires two Cells, Dry X.
Introduced circa 1917.
Wiring diagram - N142.
Last revised: November 08, 2023