Speak and Spell pitch via CV
1,038 views · Published 22 November 2009 · 1:31 · Indexed 23 October 2026
Channel: Avery Brooks · 2009 · Music
This is a total hack CV control circuit I was testing for a modded Speak and Spell. A photocell shrinkwrapped agaist an LED provide a way to convert 0-9v to a resistance. Luckily CV is DC so that works out pretty nicely. The voltage ranges and resistance need to be tweaked to give more accurate control, and there are plenty of places for this to go wrong, but this is just a really basic proof of concept.
