ZXVOICE – A Simple Voice Synthesizer for the ZX81

1986 - wilf rigter

I designed a simple Voice Synthesizer circuit and PCB for my ZX81 in 1986. 
Here is a reprint of an article originally written by Gerd Breunung for the 
Vancouver Sinclair Users Group newsletter ZXAPPEAL based on his
experience of building this project. 
 
zxvoice.zip (1986)
 
enjoy
 
wilf