Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

41-295 Developed Intermittent Crackling
#1

I electronically restored a 41-295. It has recently developed a crackling sound. It sometimes levels off when it's tuned to a station, but will excite back up when going down the dial. I have replaced almost all the caps except three mica caps, and I've replaced all the resistors. I've probed around looking for sold solder joints or anything loose, but have not found anything conclusive. Besides the crackling it's a fantastic set. Receives well and sounds wonderful. Any tips from the Philco experts out there on this cracking?
#2

(03-06-2012, 04:37 PM)Sourbone Wrote:  I electronically restored a 41-295. It has recently developed a crackling sound. It sometimes levels off when it's tuned to a station, but will excite back up when going down the dial. I have replaced almost all the caps except three mica caps, and I've replaced all the resistors. I've probed around looking for sold solder joints or anything loose, but have not found anything conclusive. Besides the crackling it's a fantastic set. Receives well and sounds wonderful. Any tips from the Philco experts out there on this cracking?

Could be a bad mica but I'd grab the tracer poke around till I found the problem.
Terry
#3

Only 3 mica caps to go? Replace 'em. But only after the gentle tapping and probing with a dry old chopstick reject from the kitchen. I assume that tube pins, sockets and switches have received their once every 50 years Deoxit shower.

Else you may be poking around until next Christmas.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM
54C Complete Teardown/Rebuild
While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project.  O...glyphmon — 11:07 PM
Preliminary work on wife's Silvertone 2014
Hello roy, that great news glad it worked out for you !! Sincerely Richardradiorich — 10:50 PM
Preliminary work on wife's Silvertone 2014
Safety caps arrived today.  Soldered one in and had a successful first power-up.  No magic smoke escaped and it tunes in...glyphmon — 09:53 PM

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

>