I've got to put in an optoisolator (tremolo bug) in a Fender amp with tremolo today but I forgot the orientation of the 4 leads. The amp came in with old (bad) one already removed, so I can't just copy it.
The one I have as a replacement has 2x brass/copper leads and 2x silver leads. Can't remember if the copper leads are closest to the pots and the silver leads are closest to the tubes or vice-versa.
The LDR seems to be on the silver leads. Of course, I've got a document re: tremolo issues (Fender Service Bulletin), which I've temporarily misplaced.
Thanks for your help,
Last edited by Bob M.; 06-19-2019 at 05:36 PM. Reason: clarity
Logic is an organized way of going wrong with confidence
Thanks very much for your timely help. I have some tremolo info that I misplaced so it was great to get your quick response so I could get on with fixing the amp's tremolo.
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