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Heathkit GRN-900-21
I got this set from a guy at work who's wife wanted it out of the house. He was delighted I took it as it took him a year to build it back in '73. He said it would have broken his heart to put it on the curb. It wasn't working; it kept going into overcurrent as I brought it up on the variac. It turned out to be a blown diode in the 155V rectifier circuit. Easily found replacements at the shack.
I will replace the electrolytics and fuse all the supplies, but looks promising so far. He gave me the full set of manuals which will be a big help.
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09-12-2009, 01:07 PM
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