Reference signal levels for troubleshooting.
ZX81 Logic Signals PublicationSyntaxPub DetailsSyntax/Syntax ZX80 v3 n10Volume: 3 Issue: 10DateOctober 1982Pages13Read the articleSee all articles from Syntax/Syntax ZX80 v3 n10 Reference signal levels for troubleshooting. TagsSyntax 1982 Reference TS 1000 ZX81