Author Topic: Northern Electric N1717CG (anti-sidetone local battery magneto wall set)  (Read 719 times)

unbeldi

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Here are the schematics for the Northern Electric N1717CG wall-mounted subscriber set.  This telephone is an anti-sidetone instrument that uses a local battery operated transmitter and a magneto for signaling.

The circuit is in principle similar to the Western Electric 400K subscriber set and the 307 desk telephone.

The components of the N1717CG are:
 wood enclosure
 104A induction coil
 195AN condenser (dual, 1 F and 0.6 F)
 B1N ringer
 41BN hand generator
 F1 handset
 N1G push-button key
 63KN resistance
 N143Y switchhook



T/B/cont.
« Last Edit: April 19, 2015, 10:26:13 PM by unbeldi »