I've just noticed that my A156 Quantizer is about a semitone out of
tune. I tuned my VCOs against my Midi synth but when I play the 155
through the Quantizer, the notes are out. Which of the four trimmers
should I attack (the scale is bang on one octave, it is just the offset).

Yours Aye

Stuadh

PS still interested in how to have the quantizer play the 4th instead
of the 6th.