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

37-610 volume pot acting funny
#1

A few days ago, I went to the SARS spring meet in Atlanta. I traded my 38-62 for this 37-610. I told myself no more Philco's, but this is one I always liked. It was recapped before I got it. It has audio, but the volume control is very touchy. It only has one point where it's listenable - any lower and you can't here it at all, any higher, and it squeals like crazy. The cabinet it in pretty good shape, but the chassis is very dirty and needs lots of work. I tried spraying the pot, but it's sealed, and it made no difference.


Attached Files Image(s)
   

Slave to an RCA Victor CTC-25
#2

Hi Dave,
A few things come to mind. Open volume control. To check disconnect and use an analog ohm meter connected to the center post and one of the ends. Set meter to it's highest scale. Needle of the meter should move nice and smooth. If needle jumps around you need a new pot.
Tube shields in place??
Could the previous recap job has issues. Wrong value cap in the wrong place or wire placement after recap could be causing your set to oscillate.

CTC-25 Glutton for punishment!!!!! My parents had a CTC-7 when I was a kid back in '59. Used it till the early 70's when they got a Sony Trinatron.

Terry
#3

Next time I'm at the radio club I'll check those things. The CTC-25 has been a good little TV. It has not yet given me any trouble and I've had it since February. The two varmints are the CTC-40 and the Zenith 25DC56. I think I finally got the Zenith ironed out though. With the help of some fellow TV collectors.

Slave to an RCA Victor CTC-25
#4

I've got a RCA 6T65 (KCS-47A) from '50 that I fixed up about 10 or 15 yrs ago.
https://www.flickr.com/photos/42774321@N...ateposted/
Evey once in a while something will give up the ghost and it will require some service.
Last go around it was the vert osc transformer, luckily I've got a few parts sets.

Terry




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Need to purchase some accessories for restoration of my Old Philco Radio
Hi Paulo, Welcome to the Philco Phorum. I can see why you want to find good reproduction parts. That is a bea...MrFixr55 — 11:10 PM
HiFi (Chifi) tube amp build - but my own design.
Tim, I have some bakelite sockets in my work shop that I can dig up. I believe quite a few are NOS. I will take photo...RodB — 10:03 PM
Philco 610B oscillator wiring
> The cathode as noted is wired directly to the ground side of the heater filament for that tube, not to the #17 and ...Radioroslyn — 08:12 PM
HiFi (Chifi) tube amp build - but my own design.
Tim; I noticed your post a little late, but I would take one of the junk sockets and try to break a chunk out of it wi...Arran — 08:07 PM
Need to purchase some accessories for restoration of my Old Philco Radio
Here is a list of resources found in our online library that you might find useful. Mike's Gobs of Knobs email addres...klondike98 — 01:46 PM
First Radio restoration
Hi Tubeman, Welcome to the Philco Phorum.  Phamily Phriendly Pfun with Phine Pholks Phull of Philco Phacts. (See a p...MrFixr55 — 12:33 PM
First Radio restoration
You could post in the WANTED ADs section here on the Phorum and see if anyone has an RF generator that they want to sell...klondike98 — 11:55 AM
Zenith H725
Good ideas, thank you Arrange and Rich. I have the adhesive aluminum foil already and can try that immediately. More ...EdHolland — 10:18 AM
Graphics for majestic 1050 dial glass.
Murf; I found this thread on the ARF, the first photo has a pretty good view of the dial glass. Regards ArranArran — 01:12 AM
Zenith H725
hello Ed, how about that speacial tape used for ducting it's like foil or how about thin piece of aluminum roof flash...radiorich — 12:19 AM

[-]
Who's Online
There are currently no members online.

>