Northern Electric N717CG

[Doug Rose]

I connect DT to L1 and L2 and it rings LOUD! When I press the button on the side it answers the call. I cannot hear or transmit.

If I press the button I get faint DT for a second ...than loud DT for a second and then nothing. Is this wired properly or will this not work on todays systems as this was a magneto, but the ringer looks like it came from a 302. Coil is differnt.  It is very cool....Doug

[unbeldi]

You have to check the actual wiring of the set, it could be used in two or three different signaling environments.
It certainly won't work on a modern CB line unless modified.  IIRC it is very similar to a 307 telephone. It needs a battery for the transmitter.

I think we discussed somewhere here before.

[unbeldi]

Here are the diagrams for it:

Circuit Diagram:



Wiring Diagram:



The discussion was here in a long-winded way.


The wiring diagram from the catalog is hard to read to understand how this works, the circuit makes it much clearer.

[Doug Rose]

I  stripped the black off the wood, gongs, clapper cover, lock and the handset hook.  Why would you paint over nickel? Howards restorafinsh walnut. Ready for a beer.....Doug

[HarrySmith]

Nice! Looks good!

[Ktownphoneco]

Doug   ....   I've restored a couple of these sets for people in the past.     Both individuals wanted to hook them up and use them on their private line home telephone service.    I swapped out the 104A induction coil, and replaced it with a 101A induction coil and wired the set the same as a 302 equipped for manual service.      I re-wired the ground ringing switch so that when the switch was in the normal position ( button released) the ringers were connected to the line, and operate on an incoming call.        When the ground ringing switch was depressed, the ringer was dis-connected from the line, and connected to the magneto, so that the ringer operation could be demonstrated.    Once the button was released, the ringers were again, dis-connected from the magneto and placed back into the incoming telephone line.

Jeff Lamb

[Doug Rose]

Thank Jeff....sound like I have a job ahead of me!! Weather is getting nice so it might be a Winter or Fall  project. I was very happy how it turned out cosmetically, really a nice phone....Doug