At 05:39 PM 5/12/2003 +0200, dr. Imre Bartfai wrote:
>Hello,
>
>use a GOOD opto-coupler (I mean that with high CTRR, e. g. LTV817B), and
>amplify the output.

I don't remember the part number we used, but I think the CTRR was
something like 2000.
Probably a darlington.
NOT a fast part by any means, but we didn't need fast.

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