[sdiy] VCAs from outer space

[harrybissell]

Off the top...

Make R14, R34 = 150K

R5, R12, R27, R36 = 125K (124K 1%)

R8, R30 = 25K  (24.9K 1%)

That should do it. In general these need to be changed because they
set voltages or currents. The values around the opamps are usualy ok
because they work by ratio, not absolute values.

The resistors arounf the LM13700 are probably OK.

You really might not ~need~ to change anything, but this will make the
circuit work exactly like it would on +/-12V

H^) harry

dustin sedlacek wrote:
> 
> I have been looking at Ray Wilson's dual log/lin VCA,  I use a blacet
> power supply. On the music from outerspace site it states "If you are
> using +/-15 volt supplies you will probably need to mess with some
> values to get this to work for you." what values would need to be
> changed ? can someone offer some help ? Thanks in advance
> -Dustin