Battery Ringing Wall Telephones
for Railway Work
The battery ringing type of telephone is preferred by most railway companies, so that these instruments are specially designed for simplicity, efficiency and durability in such service.
This set is very suitable for long lines and short lines where the insulation is low.
It is fitted with a relay which operates with weak currents and automatically connects a local circuit for ringing the bell.
Separate speaking and ringing battery circuits.
Double pole " Bell " receiver N6801
Receiver cord N4060
Solid back transmitter N7701
Bell: 100 ohms
Relay: 1000 ohms
Press-button for signalling
Carbon lightning arrester
Overall dimensions 12 x 7.25 x 6.75 inches
Weight 7.25 lb.
Click here for Blueprint picture of N1170C
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