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J. Lacy's losmandy optp isolator
Some tima ago James Lacy sold kits for making an optoisolator for
Losmandy mounts. This use d a quad opto isolator ic.
Has anyone a copy of the circuit I have mislaid mine.
Failing that can anyone tell me what the ST4 convention is,
ie does each "relay" pull up or pull down a 12v potential ?
With hopes Gerald.
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