[sdiy] Looking for info on EFM pcbs (vc04e lfo5a vcf... etc. etc.)

[Louis van Dompselaar]

Julian wrote:
> Anyone have any saved information on bugs, fixes, etc. for tom gambles 
> old modular range.  im talking the vco4e, vcf 1e, 1f, 6c, etc.etc. - 
> that range.

VCF 7b: there are some errors around Q4-Q6 and Q8-Q10.  Easiest way
to fix it is to think of Q4 and Q6 as swapped, as well as Q8 and Q10.
Then you end up with each transistor having at least two connections
right.

Louis