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

Thread Closed

1936? model 84 resistor
#31

Hi Jim,
I'm pretty sure it's grounded internally but just to be sure you can check it with an ohm meter. Usually what happens is without a gnd connect to the set the volume control doesn't have much of an effect at all. Plays loud all the time. Did you try reversing the coil winding?
Terry
#32

Haven't gotten to the coil yet. Still have to align the set. Am
going to get the "Ron Special" ball-point pen alignment tool
made this morning. The coil should be right on--counted turns
& made very sure to wind in the correct direction. Will see
what alignment will do for the old girl first.
Any idea other than humidity---what causes the Litz wire
to corrode on the coil windings? The set was obviously not
out in a barn--chassis is in very good shape for the age of
the unit. Thanks much for your help. Jim
#33

Well 1st off it's not Litz wire. It's just plain old 38G cotton covered stuff. There an interaction between that little clear strip and the copper that causes it to rot. Litz wire is made up from using several strands from very fine wire like 7-41 would be 7 strands of 41G wire.
Terry
ps Your very welcome enjoy doing it. It's kinda like fixing a radio with out doing the work! If it give you any trouble you know where to find me.
#34

It reminded me of Litz wire---came off in small pieces. I suppose Litz would have
come off the coil "dead"---this wire did have some spring to it yet. Thanks again.
Jim




Users browsing this thread:
[-]
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 1652 online users. [Complete List]
» 2 Member(s) | 1650 Guest(s)
AvatarAvatar

>