Protecting PC I/O ports

wn4isx #99431 Found this... ? These are suitable for a lot of applications PC to PA Systems Interface This web page shows PA to PC interface and PC to PA interface "PA" can be many different devices, everything from a radio to tape deck. ? A serious PC audio interface...really serious but very good. ? And a rather specialized computer I/O system, well worth a read even if you don't built it. Note the distortion generator.....sort of neat to be able to add X% distortion to a signal.?? ?

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