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I found some nylon spacers in the parts bin at the local Ace
Hardware store that fit the bill exactly. No modifications required. (Sorry, no part number available). I reinstalled the switch and while I was in there I put a thermister in each leg of the filament transformer primary just to avoid any future pitting. I fired it up and... nothing. No power out except the drive power (about 60w). So now I've got another question for the group. I can dip the plate current to about 180 ma. and the corresponding grid current rises to about 400 ma. The LOAD control has no affect, whatsoever. I even removed the thermisters just in case since that's really the only thing I changed. HV is good, T/R relay is OK, filaments light up, idle current is OK (about 180 ma). The 3-500Z's aren't shorted. Can someone suggest where else I might look? Thanks, Kris N5KM On 12/7/2010 8:00 PM, Kris Mraz wrote: Hi All, |
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