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 I.F. Transformer Caps Missing
#1

http://www.nostalgiaair.org/PagesByModel...013423.pdf

Have the 3rd I.F. can, part #42 open. Suspected open coil, but it is OK. Schematic shows two 100mmfd caps inside, #'s 42A and 42B, and #42C, a 47K resistor. The resistor is there but no caps.The black wire that grounds the two caps just dead-ends at pin. Does anyone know if this was a production change? If so, why did they leave the wire ? 99% sure radio left factory like this. I don't know enough to determine what  effect  this would have on circuit.


Attached Files Image(s)
   
#2

The 100 pF caps are built into the white ceramic piece at the top of the IF transformer, so they are not visible.

--
Ron Ramirez
Ferdinand IN
#3

OK,thanks. Curious. Are they under the variable or actually cast into the ceramic?




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 1518 online users. [Complete List]
» 2 Member(s) | 1516 Guest(s)
AvatarAvatar

>