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

Model 38-3 Volume Control
#1

I had my model 38-3 radio recapped recently. It plays very well but it seems that there is an issue with the volume control. When I turn the volume control fully counter clockwise to the minimum volume setting the radio does not mute. A few times when I turn the volume clockwise to increase the volume the volume will increase but most of the time the volume actually decreases a bit. This does seem to be intermittent but again most of the time the volume control doesn't adjust the volume level. It seems to remain at a constant level. What should I check to see if I can correct the volume control?

Thanks,

Charlie
#2

Looks like a tapped volume control, might be hard but not impossible to find a direct replacement. I'd try cleaning it with some deoxit, and measuring end to end and with wiper moving resistance with ohm meter, tap included. Work arounds with still obtainable controls can be done.

If the paper capacitors and ancient carbon resistors have been replaced, these should not be an issue.

Let us know.

Kind of blurry schematic here:
No cost version:

http://www.nostalgiaair.org/PagesByModel...013243.pdf

Better one (well worth it!) available at

http://www.nostalgiaair.org/PagesByModel...013243.pdf
#3

You posted the same link twice. Bet you meant to send him to either

http://www.antiqueradioschematics.org/about.htm or

http://www.philcorepairbench.com/schematics.htm
#4

Thanks, right on.




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Philco 40-155
At last, got this working well. Impressed has really nice reception and tone. Had a bad connection on one of the capaci...rogerh — 07:44 PM
Philco 91 Restore Code ??
Or you could just square the current :lol: As for the values, they are dependent on the 1 or 2-speaker system. The...morzh — 05:46 PM
Philco 91 Restore Code ??
If you know the fc resistance you can use 120 ma nominal current through the resistor to get the voltage drop then calcu...RodB — 05:21 PM
Philco 91 Restore Code ??
Thanks Mike. I at least know why it is there if I don't fully understand it. I see where you talk about a cap and resist...dconant — 04:49 PM
Philco 91 Restore Code ??
Well, this cap you showed cannot possibly, due to the way it is constructed, be 1000pF (0.001). It can be in tens of pF....morzh — 03:13 PM
Philco 91 Restore Code ??
I have two schematics for this radio one shows the 47 block (126-226) and the other (121-221) does not. My radio does no...dconant — 02:32 PM
Philco 91 Restore Code ??
No, that cannot be the 47. The 47 is a regular backelite block cap. Look at the chassis picture, it is shown there. Rig...morzh — 01:45 PM
Philco 91 Restore Code ??
I have changed the title of this thread from Philco 91 Schematic. I have gone through most of the cap replacements. I...dconant — 01:26 PM
462ron
Here is an online transistor substitution site… Ron462ron — 08:44 AM
1930s Stewart-Warner Tombstone Radio need help identifying model number
One way to repair a broken wire on a coil is to take a copper strand out of some 18 gauge electrical cord, make a &quo...captainclock1988 — 12:55 AM

[-]
Who's Online
There are currently 2667 online users. [Complete List]
» 4 Member(s) | 2663 Guest(s)
AvatarAvatarAvatarAvatar

>