Used MCI JH-100 Control Card, Untested, Sold As Is. The cards are complete and in average cosmetic condition but capacitors should be replaced, and the cards may need other repairs. The potentiometer sub-assembly has some rust and these boards show their age. They each have 2 transformers, which I believe have 2:1 gain ratios. Sold as is, as found, for parts or repair.
These cards were used the early version MCI JH-100 recorder. They are not compatible with later MCI and Sony JH-24 machines.
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