MATRIXSYNTH: Psych tone emulation


Monday, March 18, 2013

Psych tone emulation

Published on Mar 18, 2013 otherunicorn·40 videos

Don't miss the second video below.

"Please excuse the lousy camera work.
This patch emulates the old Popular Electronics "Psych Tone" project. I used a CGS13 Gated Comparator for the shift register and CGS39 Quad logic gate (XOR) instead of their odd NOR gate arrangement. Bits 5 and 6 were gated and fed back into the input of the CGS13. A floating patch cord to one of the EXORs was used to kick start it, and change the mode of operation from time to time. Tone selection switches were replaced with patch cords (non inverting pulses only) and mixed via a CGS81 processor (inverted or non-inverted) and fed as a CV to a Zeroscillator. At some point I add a 4th bit for added variety, and plug a sequenced oscillator into the Zeroscillator's polarity function."

Psych Tone - taking it further

Same description as above with "The modulating oscillator is being sequenced."

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