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

Help to id Philco condenser block
#16

BTW, has anyone had success in cleaning the volume pots on these. I have a small amount of "scratchiness" which I'd like to eliminate, but the pot seems pretty well sealed. If it's a risky job, I'll just leave it as is.


Unsolder, pry up the 6 tabs on the front. Gently pull it apart. Spray inside with Deoxit(best but some guys use WD-40 )with good results. Reassemble with care that the tab that flips the off/on switch is in the proper position. Resolder and enjoy! If that doesn't fix it you have a worn spot in the resistance film inside the pot. This will require replacement to correct the problem.
Isn't radio repair fun!!!!
Terry

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry
#17

Kiko, hi again. I have had bad luck trying to clean the Philco pots. On one I used a commercial contact cleaner and it disolved the resistance track. It may have been and odd circumstance but I'm leery with them. PL
#18

7estatdef Wrote:BTW, has anyone had success in cleaning the volume pots on these. I have a small amount of "scratchiness" which I'd like to eliminate, but the pot seems pretty well sealed. If it's a risky job, I'll just leave it as is.


Unsolder, pry up the 6 tabs on the front. Gently pull it apart. Spray inside with Deoxit(best but some guys use WD-40 )with good results. Reassemble with care that the tab that flips the off/on switch is in the proper position. Resolder and enjoy! If that doesn't fix it you have a worn spot in the resistance film inside the pot. This will require replacement to correct the problem.
Isn't radio repair fun!!!!
Terry
planigan Wrote:Kiko, hi again. I have had bad luck trying to clean the Philco pots. On one I used a commercial contact cleaner and it disolved the resistance track. It may have been and odd circumstance but I'm leery with them. PL


Well, I got the pot cleaned!

Leery about disassembling and reassembling with out damage, I removed it from the chassis and found a small hole on the front the pot with what looked like a hollow brass rivet. I gave it a couple of good squirts with NAPA electronic cleaner (used this for several years and it seems to work well and it's cheaper than most others) worked it back and forth about 25 times or so and then repeated and let dry overnight...and presto, I have a clean pot with all the "scratchiness" gone and better volume too.

Yep, radio repair is fun...when you can look back at your success. However, it sometimes can be really frustrating...before you get to that point! Thanks again guys, this forum is always a great help to those of us who are "electronically challenged" and still learning.

Best regards,
Kico

"I whisper, but my horse still doesn't listen."




Users browsing this thread:
[-]
Recent Posts
Philco model 38 code 121 not receiving signal.
Good news everyone! I think I have found everything I need for rewinding the antenna coil primary. I found some pla...Stormlord5500 — 09:40 AM
Philco Battery-WWII vintage
My younger sister went to SUNY Plattsburg NY, (BS, MS, RN) in the late 1970sabout 10 min from the Northern NY / Canada b...MrFixr55 — 07:59 AM
Philco Battery-WWII vintage
Hello Bob, What Amazing find! Sincerely Richardradiorich — 10:19 PM
Testing a speaker and output transformer Trutone A2-G
Hi Murf, Do this: Monitor between ground and one plate of the rectifier while playing the radio.  Do the same with ...MrFixr55 — 09:51 PM
Philco Battery-WWII vintage
Mike; I take it that Soviet cars did not come equipped with block heaters, hence the hot oil change? Where I lived in...Arran — 08:42 PM
Philco 42-345 Restoration/Repair
The more the better. (Within reasonable limits.) 2-5 times more is no problem in this case.Vlad95 — 03:50 PM
Philco 42-345 Restoration/Repair
Thanks, RodB and Vlad95, I was mainly trying to figure out this capacitor to locate a replacement, Vlad thank you for...osanders0311 — 03:44 PM
Testing a speaker and output transformer Trutone A2-G
Would an output transformer if weak, cause the problems I am seeing with lower B+ voltage? murfmurf — 01:22 PM
Testing a speaker and output transformer Trutone A2-G
Hello murf! I merged the threads. Please do not start new threads regarding the same radio. Take care, - GaryGarySP — 10:21 PM
Philco 42-345 Restoration/Repair
Regarding picture 5 on page 1 of this thread this capacitor is #40 on scematics diagram - 4mF+4mF. Black wire is "-...Vlad95 — 09:01 PM

[-]
Who's Online
There are currently 652 online users. [Complete List]
» 4 Member(s) | 648 Guest(s)
AvatarAvatarAvatarAvatar

>