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Today old tv nut and myself went through the entire Sams horizontal adjustment proceedure, to try and get the current lower. First we connected a scope to the horizontal sinewave coil, and adjusted it for 'equal peaks'. Then we used 2 current meters, one on the horizontal output one on the HV regulator, and a high voltage probe on the anode supply. We tweaked the efficiency coil for lowest reading on the output, then adjusted high voltage for <.8ma on the HV regulator while reading 23.5kv on the HV probe.
Result: 6DQ5 cathode finally settled at around 176ma.
Next, I'm gonna try rolling a few different output tubes to see if I can get it even lower. Chas mentions there were some issues with some iterations of it, so I went right to Ebay and ordered a few. My hope is that the new HOT will get me the rest of the way there.
Also, Moyers does not have a replacement flyback for the '9 at any of their stores...
BTW, I found out what happens if the HV regulator becomes defunct: a whole lotta nothin'. HV jumps up to like 27k, but nothing that would stand out at get your attention. It happened when the current meter came off the 6BK4, just like I said it would. lol
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