Cgs synth

Octave buffer -

When the inputs to OCT A,B and C and NOTE A,B and C are all Low (0V), the
output should read 0V. Set OCT A, B and C High (+15). Adjust Oct Adj trimmer
until the output (OUT) is 7.0V.

Set OCT A,B and C and NOTE A,B and C all to Low again. The output should
read 0V again. Set NOTE A, B and C High (+15). Adjust Note Adj trimmer
until the output (OUT) is 1.0V.

Really best done before the Diatonic Converter is connected to the Infinite
Melody.

You get Lows into the Infinite Melody by clocking it multipe times it with
nothing connected to the Noise input and the SENSE knob twisted CW, and
you get Highs into the Infinite Melody by clocking it multipe times it with
nothing connected to the Noise input and the SENSE knob twisted CCW,
but I think this won't help, because I don't see how you can individually
set the note or oct inputs. You may be able to trim by reading the voltages
at IC4a Pin 1 (set to -7.0V), and IC3b pin 7 (Set to -1.0V). These chips are
the ones closets the their respective trimmers.


Ken
_______________________________________________________________________
Ken Stone sasami@... otherunicorn@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>