Tube synth diy

Hi Eric
sorry to drag out this old chestnut.
A while ago I saved a message you had posted (to synth diy?) way back
in 1997, it contained a 'tiff packbits' file of a quad VCO.

I have never managed to convert this into any kind of image, don't
suppose you have a bmp or jpeg version around? or could just describe
the circuit? 

posted a copy of the original message in files - scroll right down

cheers
Andrew