Tom,
I restored one of those a while back. Cooked the pwr xformer, not letting it dry long enough after a trip to the dishwasher, before re-power. Luckily, had the companion FM-3 tuner with an identical pwr xformer for comparison during rewind. Don't have sig gen or sweeper, so used my std method of on-air broadcast, and high Z DMM on the AVC bus.
marv
:Does anyone have the alignment instructions for this old Heath AM tuner? It is unusual in that it has a wider bandwidth than normal and may not respond well to merely peaking the IF cans.
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