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

Thread Closed

philco 80 jr. help please. 1st time restoring a radio this old
#11

thank you Ron for your input.

i do have to say though that im more confused now than i was before about how the "gimmick" is wired in.

in the write-up on the "philco repair bench" site, you say to solder one end of an insulated wire to the cathode lead of the detector/oscillator tube.
then, this wire gets coiled tightly around the wire coming off of the center "wiper" lead of the volume control pot.

to me, this meant that one end of the wire is left unconnected to anything.

in your response to me in the forum, you state that you need two wires, one soldered to the cathode of the det/osc tube, and one soldered to the center lead of the volume pot. then, the free ends of these two wires are twisted together (insulation on of course).
your response did not mention wrapping either of the wires around the "wiper" wire.

so, while i understand the concept of trying to gain a little bit of capacitance between the two leads, it sounds like there are two different ways of doing it.

i do apologize if it sounds like im over-complicating a simple idea, but i do want to get it right the first time.

thanks in advance for any further explanation you can offer.

thanks also for the 13K resistor tip.

ill be doing a fair bit of this work tomorrow and the next day, so ill be able to post my progress after that.
boy i sure hope i dont have to rewind any coils!
LC


Messages In This Thread
RE: philco 80 jr. help please. 1st time restoring a radio this old - by loosecannon - 08-25-2014, 08:09 PM



Users browsing this thread: 2 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.

>