Admiral 26R12 restoration

[IsthmusTV]

Wow, that set sure had a lot of "issues." With all those hack repairs, maybe that's why they put casters on it

Fabulous work as usual, Bob.

-Clark

[Glenz75]

Great thread so far Bob - Lucky about getting some replacement vertical transformers, in all my TV adventures over the years I've only come across one that had an open circuit vertical blocking osc transformer. By the way I keep noticing that speaker on its front at the back of your bench, just curious as to why it just sits there? Is it one of those things that you keep meaning to move and forget about I have things like that on my workbenches..

[bandersen]

Originally Posted by IsthmusTV

Wow, that set sure had a lot of "issues." With all those hack repairs, maybe that's why they put casters on it

Fabulous work as usual, Bob.

-Clark

LOL - could be I confirmed that the sets current owner has tile floors so I'll be putting felt pads on the bottom. I just hope the holes drilled for those casters didn't crack the bakelite.

This set sure has been rather interesting to work on. I'd say the oddest "repair" so far was the addition of an extra 470 pF mica cap into the horizontal oscillator circuit where none belonged.
It the one turned around so no color dots are showing. I assumed that one of the originals must be bad, but, nope, they're all good.





I got around to checking all the tubes last night and was surprised to find there all quite good except for one. The 6AC7 video output tube shows a short on the plate so I'll replace it.

Originally Posted by Glenz75

...By the way I keep noticing that speaker on its front at the back of your bench, just curious as to why it just sits there? Is it one of those things that you keep meaning to move and forget about I have things like that on my workbenches..

Ah, that's a field coil speaker for an Admiral 20X1 chassis. I've been working on 3 of them in between these 21B1 Admiral chassis so I just left it up there for convenience. I really should put it somewhere safer though. I'd hate to tear the cone

[kvflyer]

Originally Posted by bandersen

...
Ah, that's a field coil speaker for an Admiral 20X1 chassis. I've been working on 3 of them in between these 21B1 Admiral chassis so I just left it up there for convenience. I really should put it somewhere safer though. I'd hate to tear the cone

When I have a speaker, now the first thing I do is to tape a piece of heavy corrugated cardboard cut to the exact size to the speaker over the front. Of course, it is easy to drop those needle nose pliers or screwdrivers just at the wrong time. They always seem to find the backside of the speaker.