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Rewire the filaments from 24 volt configuration to 12 volts.
You need +250 for plate voltage. It's been 50+ years since I modified one, so I don't know the pin assignments. /s/ DD genev wrote: I just got an ARC 5 receiver and wonder if anyone has any tips on modifying it; I had one in the 1960's, but can't remember what I had to do to it. I think I replaced the dynamoter plug with a modern one, but dont remember how I put the tuning knob on the front. Also, what voltages are needed? Thanks in advance for any info. Richard K1TAV |
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