[sdiy] TTL top octave generator, was: transistor substitutions for BC108, BC187

[Ingo Debus]

Am 27.04.2007 um 13:22 schrieb Mike:

> Has anyone got a very early copy of Elektor with a TTL composite top
> octave generator in it? I accidentally left over half my Elektor  
> collection
> behind when I moved house, and the demolition men buried them. It was
> definitely pre 1975. I used it in a primitive organ/polysynth I  
> built as a
> student,

I have the german issue, would that help you? You're right, it was  
November and December 1974.

You really built that monster? I built the "small" version with the  
TOS IC back then.

Ingo