From Oakley Sound via analogue Sent Mon, Apr 15th 2019, 20:40
Isn't this exactly what a Chorus circuit is supposed to do? Varying the pitch by modulating the delay time of the BBD and mixing that with original signal? 1 semitone seems like a lot, maybe there's a trimmer for modulation amount? -Dave On 4/15/19 4:09 PM, Kenny Balys wrote: > > I don't have one of these but a general piece of advice for all Roland > gear of that era is to have a good close look at the PCB. Look at the > traces > closely. > > Sometimes a sizzled trace can cause all kinds of strange issues. > > > > On 15.04.19 20:01 , Fernando Zarone wrote: >> Hi all, >> The RE-501 works great, but the chorus exhibits a problem: I input a >> note, one oscillator, stably tuned, and, with the Chirus intensity >> pot at the max, it looks like a LFO engaged, raising and lowering the >> tune about 1 semitone. >> Any help? AFAIR, that section is BBD based, independent of the tape >> circuit, isn’t it? >> Any help appreciated >> Ciao >> F >> -- David Moylan Expedition Electronics sonic adventures!