Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

40-216 volume control motor
#1

My 40-216 volume control motor just hums/buzzes. Removed and it spins freely. I have gone over everything in its control circuit. The caps and resistors are good, the trans winding resistance is dead on. Though it's putting out 28.5v at 115v, 29.7v out at line voltage. Philco parts says 21.4v out at 115v, but I don't think that's what's causing it not to work. The 2 sets of motor windings resistance match. Both at 12.9 ohms. Did a bench set up to test the motor and after a few power ups it started to turn, but slowly. It got hot so did the cap. I'm at a lose. I don't know the specs of the motor winding resistance, as said the 2 sets match. But it could be the problem.  Has any one run into this before?


Attached Files Image(s)
       


Messages In This Thread
40-216 volume control motor - by rjm - 05-26-2021, 03:45 PM
RE: 40-216 volume control motor - by OZ4 - 05-27-2021, 03:41 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco Model 38-7: what caps & resistors do fail typically?
Since you stated earlier, you have a console 38-7XX.  They also had a 38-7T (table), and 38-7CS (chairside).  A very nic...GarySP — 01:18 PM
Part numbers to model cross
That I wouldn't know, but sometimes the radio document itself shows one, same as the capacitor cans' etc pinouts.morzh — 12:46 PM
Part numbers to model cross
Thank you morzh, that is exactly what I was looking for. Now , is there some where that shows pinouts for Philco power ...Jim Dutridge — 11:37 AM
Restoration of the Canadian General Electric A-87
Thanks for your help Michael. In fact, this video is only an intermediate result. Later I had to apply another tinting l...RadioSvit — 09:01 AM
Restoration of the Canadian General Electric A-87
Great job on the cabinet. PS. In the US notation, "kenotron" refers to specific type of tubes; we call re...morzh — 08:24 AM
Part numbers to model cross
This document has at least some tables of models and parts used. Example: Choke 32-7572, used in 604 radio. Search f...morzh — 08:19 AM
Restoration of the Canadian General Electric A-87
I also checked all the radio tubes on my Hickok 530 tube tester. The 5Z3 kenotron turned out to be faulty, all the other...RadioSvit — 08:02 AM
Restoration of the Canadian General Electric A-87
Well... While the varnish is drying up, I started repairing the chassis... Of course I started by replacing the pa...RadioSvit — 07:12 AM
Philco Model 38-7: what caps & resistors do fail typically?
Hello Martin, Welcome aboard our little community what great Model 38-7 Sincerely Richardradiorich — 12:30 AM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum Martin. I count about 9 paper caps, the 3 electrolytic caps and 2-Y2 safety caps to replace th...RodB — 09:44 PM

[-]
Who's Online
There are currently 1438 online users. [Complete List]
» 1 Member(s) | 1437 Guest(s)
Avatar

>