Took a 99 Cent Gamble on a Type 21 AE Desk Set Ringer Box

[poplar1]

Borrow a capacitor or 2 from your stash of 302 bases. Yellow and slate = 0.5 uF so you may need 2 in parallel to make 1.0.

[Doug Rose]

David....thanks for all your help and patience!! There was another break in the wire to the cap I discovered when I removed the cap from the subset.

We are operational....great ring. 

This is HEAVY!

A little paint loss on the very top that I will touch up. Very happy the way this turned out....Doug

[Key2871]

I've tried denatured alcohol on paint like that to remove specks and etc. Softens it up so you can wipe it off.
Wear gloves, that's a must do.
It doesn't effect the finish, but removes the paint.
Do in small areas at a time.

[Doug Rose]

From our resident AE Expert Stub

Doug,
          Your subset is for AE 21 Desk set Booster circuit (2 winding induction-coil) . Go to "AE Bulletin No.1015 , 1929, pg. 5" Type 21 Automatic Desk set , Booster circuit

[poplar1]

Oops. I referred to the diagram in Reply #5. Your ringer works so long as it is wired in series with the capacitor. I will upload the diagram from AE bulletin #21 when I get a chance. It is in the TCI library (telephonecollectors.info)
From our resident AE Expert Stub

Doug,
          Your subset is for AE 21 Desk set Booster circuit (2 winding induction-coil) . Go to "AE Bulletin No.1015 , 1929, pg. 5" Type 21 Automatic Desk set , Booster circuit

[stub]

No expert, just read the bulletin. stub

[Jim Stettler]

No expert, just read the bulletin. stub

The expert part is knowing which bulletin to read.....

[Doug Rose]

No expert, just read the bulletin. stub

thanks Ken....I do appreciate the help.....Doug

[stub]

Doug,
          Great job on the clean up!  Here's one in American Electric Bulletin , 1929 , pgs. 9-10 and 16 .  stub

[Doug Rose]

thanks Ken....you are the man!...Doug