Zenith G2322 "Claridge" restoration

[Kevin Kuehn]

Those tuner contacts rubbing on the back of the cover plate are highly suspect.

[bandersen]

They are and I went over all the fixed and moveable contacts.
They're fine.
Also went over all the coils in the channel strips.
They're fine.

However, while making all these checks I must have bumped something because a tuner tune went dark. Now how is that possible when it's a series strung set? Well some of the tubes (including those in the tuber) draw their filament juice from a power transformer.

So I wiggled the tube and, viola, a clear picture emerged! Bad tube socket strikes again!

Now the tube had been glowing when I was getting a crummy image so I expect it was the grd, cathode or plate that was making a high resistance connection.

Thanks for all the thoughts and suggestions.

[old_tv_nut]

Woohoo! I hate bad connections.

[kvflyer]

Bob, only recently, I have gotten back into working on my televisions that have been in queue for literally years. I have been concentrating on tube amplifiers. What I have found is that so many times, on initial power up, monitoring the filters, etc. I have no signal pass at all.

Tube sockets are always a problem with those amplifiers. Now that I have worked on the Pilot TV-37 and RCA 630TS, one thing that I always do is clean each socket as part of the drill. It has "burned" me too many times.

Congratulations on another nice project. I have a Porthole in queue right now, but the Admiral 19A11 just made it to the bench and that is front and center!

Good on 'ya, Mate!

[Chris K]

Amazing how these things take us down the rabbit hole only to find it’s something so simple! I’ve been working on a focus issue with my GE Locomotive and I’ve suddenly lost the video and sound. I’ll bet something got knocked loose after I flipped it over a few times. The tv gave me my first opportunity to use my 5” technician crt. A lot easier than manipulating a chassis with a 10BP4 in it!

[Phil Nelson]

Originally Posted by kvflyer

one thing that I always do is clean each socket as part of the drill.

Amen. That's why my "First Steps In Restoration" article has a section on cleaning tube pins and sockets:

https://antiqueradio.org/FirstStepsInRestoration.htm

It's such a simple and obvious step, but some folks skip it -- maybe 'cuz they're in a hurry.

Regards,

Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html

[bandersen]

Well in my defense it wasn't a dirty socket, it was a damaged socket. I did make the assumption that since it was ceramic, it was high quality and making good contact, but it turned out the one of the contacts was loose. Possible from having a bent tube pin inserted. I was able to tighten it up.

I wrapped up cleaning the cabinet last night and put it all back together.

The cabinet was rather dirty and had the ubiquitous white specs. Insect poop? GoJo to the rescue followed by OZ cream polish.




I found some new foot at Home Depot that were a surprisingly good match for the originals.





Finally, spent a frustratingly long time getting the screen geometry right. Looks good in both normal and expanded modes.



I did touch up the ion trap position to eliminate the shadow after I took these photos.

[Chris K]

All worth it to see a pre-Star Trek William Shatner looking so young and beautiful! Watched your video last night and the dirt that come off the cabinet was epic! Terrific looking 1949 TV with a great picture. Good to know that kilovolt charged CRT is back where it belongs!!!

[bandersen]

Not so exciting maybe, but here's the original metal back in very good condition.