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Old 09-23-2015, 05:44 PM
walterbeers walterbeers is offline
Old TVs are better!
 
Join Date: Jun 2011
Location: Omaha NE
Posts: 463
Well, progress has been slow, but going in the right direction. I was able to find a 3 meg 3 watt pot for the focus control, and using a combination of 14 meg from one side of it to ground and 4.2 meg from the plate of the 3A2 V23 I was able to achieve around 4 KV, adjustable about a half a KV either way. That may be close enough, maybe not. Will have to experiment. Set powers up on the bench without the CRT attached, and have about 22KV at the second anode. The Sams, calls for 25 KV, but I don't remember any roundie running more than 22 to 24KV on the second anode. I will say that the dropping resistor I have in the power supply is only running the B+ at 375 volt, so I probably can get more high voltage if I go up to the full 400 volt rating. I have replaced all the electrolytic capacitors, leaving the cans intact, but most of the cans are disconnected and wired underneath. The power supply caps were taken out, and replaced on top, in which I intend to mount the cans over them making it look original. I'm now onto replacing all the paper wax capacitors, but I just ordered all of them today, so that is a major soldering task ahead for the next step. I was able to fashion a yoke cover from a Tupperware lid, and mounting the copper ring to it. I have no idea how things will turn out, and if the set will ever produce a good picture, if any? Once I get all the rest of the capacitors replaced I am going to power it up connected up to the CRT and see what happens. I have high hopes though. As I said, this is going be an on going 2 or more year project.
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