Quote:
Originally Posted by vintage.digi
I’m considering driving this weekend to inspect and hopefully buy a 50s TV, and this is older than the majority of sets that I’ve dealt with in the past. What do I need in order to safely test it? Do I need an isolation transformer?
The seller posted a picture showing static and says the photo was taken yesterday. I can take something to display a picture pretty easily. I do have a tube tester but if the whole unit is working then I wouldn’t think I’d need it.
I briefly had a Predicta once, but the second time I plugged it in, it started smoking, so I sold it to someone who had the knowledge to service it. That wouldn’t just be due to the hot chassis, would it? I don’t think home users had isolation transformers at the time these were in use.
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Assume it's going to need capactors if you want it to run reliably, and it will likely quit working fairly soon due to leaking capacitors. Your Predicta likely had a cap that shorted causing the smoke. It has nothing to due with the hot chassis.
Seeing as it's working, make sure the picture's bright becuase picture tubes are getting closer to being unobtainable.
Here's a good book on 50's era TV repair that's well written for the beginner.
https://worldradiohistory.com/BOOKSH...rd-Johnson.pdf