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The short goes away with the HV leads unhooked. One of the HV capacitors is shorted. Measuring it with the DVOM in the ohms position, it stays at 3.6 ohms, the rest of the capacitors start at a low resistance then go open as the DVOM charges them. This was the upgraded capacitor bank from...
I think I found my issue. The plate transformer yellow/red wire to the red wire is only 10 ohms. Also tested the high voltage capacitors with my LCR 45 and one is waaay out of range compared to the others.
Thank you for the replies that got me pointed in a good direction.
I was running my SB 220 on 20 meters last night for 3 hours straight, approximately 15 minutes after the last keyup an arcing noise was heard and the circuit breakers opened. The short is still there with the tubes pulled.
Nothing is visibly burnt and there is no burnt electronic smell (even...
Thank you for all the replies, I was hoping to avoid calling the manufacture as running an FCC approved linear on 27Mhz is generally frowned on by some hams. I would still get the amp for the rest of the bands I run and 27Mhz would be an added bonus.
Does anyone know if the RF kits B26-PA RF2K-S amplifier will run on 11 meters? Some of the newer computer controlled linears are software locked for 11. Thanks in advance.
I won't run outside of the band from the base, and there is salt on the roads so my rust free mobile is staying in the garage. I'll put a shout out on the usual 16L, 40L.
I run on FM occasionally and turn everything down to 50% of what I run for pep on SSB, so my 8 pill gets run around 600watts on FM, my 4 pill runs at 300 watts. Everything seems to stay nice and cool running there. The guys trying to get every last watt on FM will sound like crap and smoke their...
It's likely you got a fake from Amazon. I ordered a Garmin watch for the wife and everything about it looked right, packaging, straps, case. The only clue it was a fake was the manual was incorrect and the software was wrong and wouldn't update from the Garmin webpage. There was a reason it...
I run 135' of Davis bury-flex 400, that is direct buried in my lawn. The ends are waterproofed per commercial standards and it has been in service for 2+ years now with zero issues. Currently running 1.2KW PEP through it, to an IMAX2000 that I use on 10, 12, 15, & 17 meters, on 17 meters the...
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