[TRLog] MFJ-434 driving from TR

[jukka.tamminen@koskisen.fi (Tamminen Jukka)]

Has anyone build a relay or opto isolation for driving the voice keyer ?
Could you point me towards right site pls.

I suppose that it could be driven directly but with isolation we would be or
sure side.

Regards

Jukka, OH3OJ

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