Yes, it's far easier to get the right tube than to try to rewire the socket.

The filter caps are "C20" and "C21" in the Nostalgia Air schematic I Posted a link to in Post #2 of your thread Rated at 40 and 80 MFD & 150 volts. 160 volts will be the modern replacements.

47 and 82uF are the modern replacement capacitance...

Yep, thought I typed that in there along with the 160 volts, but musta missed it......

I was able to get a 35B5 tube. The FM radio now works. I had to re string the tuning knob and deoxit the fm/am selector.
The am radio is still not picking up a station (any ideas)? The speaker paper is torn. Also there is a pot that sticks out the side of the cabinet. What is that for?
James

I am trying to send a photo of the pot that sticks out the side of the cabinet. I get a message the file is to big. Dont know how to size it smsller.

Irfanview is a handy free program for resizing and such.
https://www.irfanview.com/

Hi Tennangler,

At 20:15 in this UTube video (not my video, just something I found for you on a search of "Zenith 7H822-Z") you will see that it is the Tone control :thmbsp:

https://www.youtube.com/watch?v=Zd5VACdiJ-c

An interesting side note here......

I looked till my eyes were blurry at the Nostalgia Air schematic I posted in post #2, looking for the tone control and couldn't find it :sigh:

Come to find out, that schematic only covered the 7H822 and not the 7H822-Z. So of course, when I did find the "changes" page regarding the -Z variant, sure enough there is the tone control (lower RH side of the page) :)

Disregard the one error in the revised drawing; they show the Grid & Cathode tied together, this is wrong, the cathode is grounded in the -Z model just as it is in the 7H822 and is NOT (absolutely couldn't be) connected to the control grid as the mistake shows it to be ....

http://www.nostalgiaair.org/PagesByM...0/M0025310.pdf

You have my apology if the original schematic I found, and not the updated one, caused you any uncertainty as to what the "mystery" control is.....

I was able to attach the tone control pot per the schematic. I dont really hear a difference when I turn it. That's ok, I just wanted the hole in the case filled. The radio is reassembled and working fairly well (weak FM).
Thanks for all the instruction.
James