I was done right by MFJ. The diodes in my 935B mag loop tuner went bad after three months. I sent it in for repair under warranty. After 4 weeks they hadn't gotten around to fixing it so I instructed them to ship it back. Instead they replaced it with a new unit. I heard MFJ customer service is best when you talk to someone on the phone. Avoid using ticket feature, email, or mail. That was my experience also.
Jim, I seem to agree that the schematic seems wrong. It's not the first time that Ameritron has a wrongly printed schematic. BUT...suffice to say, the amp IS wired correctly albeit the schematic being wrong. I do agree that it is most difficult trying to follow a schematic which is "in parts". I spent about an hour looking over the schematics and I see what you are talking about. I wqould not go into the amp and change anything. I am sure it is wired right and that the schematic is just wrong. Lou
Before anyone embarked on a journey to rehabilitate some old tubes, wouldn't one want to first test to see if 2 pages of hashing out the difference between AC and DC and what all is needed to do it, would first test to see if the tubes were "OK" as is? A 5 minute quick test of the tubes might indicate nothing at all is needed and a simple "just using the tubes" will condition them? Jeez
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