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Adam
 
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Default Western Electric 302--- dial tone issues

Hi all!

This might be a long shot... but here goes.

I have an old, 1941 Western Electric Model 302 Telephone. This is a
'real' phone, and has always continued to work flawlessly... until....

We took the phone apart to clean and polish the case, and install new
cords. I had to remove the dial and the hookswitch. New cords (cloth
wrapped of course!) were installed and everything was put back together
exactly as it was.

We have a wiring diagram for it, everything is in the correct place.
Here are its symptoms:
1. When listening with the phone off the hook, you can hear the line
noise, but no dial tone
2. slight motion of the pulse dial gives a momentary dialtone, which
then disappears
3. the phone rings properly, but will not answer when lifted off the hook.

The wiring diagram from Western Electric indicates that one of the two
clapper switches in the hook switch assembly "makes last" but it does
not give any specifications-- should there be a delay between the
closure of one part and then the other? I can't really imagine the phone
company in 1941 detecting an 80ms delay between two switches?

I've really been at wits end because nothing seems to have changed
except that the phone wont trigger a dial tone. My previous
understanding was that the CO (central office) detected a closed circuit
through the hook switch and that was what triggered the dial tone. I've
checked all contacts in both the hook switch and dial and they all
connect and disconnect cleanly.

Any suggestions, interest, or help would be grately appreciated!

Thanks again!
-Adam