Quote:
Originally Posted by Kevin Kuehn
The horizontal yoke winding is directly driven by the plate circuit of the horizontal output using that odd looking air core auto-transformer. Conventional flyback transformers up to that point used a isolated secondary winding.
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Ok I’ll need to examine the schematic and look in the HV cage at its condition. BTW I built the yoke housing support you showed and tomorrow I’m going to bring up the unrestored chassis on either a dim bulb progression or on my Sencore isolation transformer/Variac to see if it produces anything on the 5” tube. After that, I think I’ll try doing it with the restored chassis and see if I can figure out what to do for the video/sound misalignment. If I can replicate your bench top rig without blowing 15KV across my chest and heart I think I should be able to align it. I have test sockets for all of the tube pinouts so working under the chassis should be at a minimum.
10-18-2025, 12:36 AM
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