Cgs synth

Thanks for the reply !

> Use a good quality machined pin IC socket. Then you can experiment. I
> doubt you will find much audible difference whatever op amp you use.
> The sound quality of this filter depends more on the other parts,
> expecially the quality of the capacitors and how well beta-matched the
> transistors are.

After reading the archive I've gotten a heap of transistors and plan
on spending a lot of time matching them. I had also been intending to
experiment with the capacitors later down the line.

> For the bypass caps, 10uf and 47uf, the Panasonic would be fine. I did
> not use electrolytics for the three caps in the signal path,
> substituting 1uf polyester, Mouser #75-MKT1826510064. I also
> substituted a 100nf cap for the 1uf specified for the CV input at the
> base of the 2n2222. For the 2n2 caps in the filter section, you want a
> high quality polystyrene, such as Mouser #23PS222.
>
> -Richard Brewster

its good to know i can substitute the electrolytics in the signal path
for non electros. i have some BC, wima, and avx caps that all could
work in place of the mkt you used. the 2n2 i had intended to use a
ceramic cap initially. i will look in to a polystyrene one though :)

my power supply research has lead me to the conclusion ken offered.
18vac plug pack into rectifier then regulator circuit :) i will knock
one of these up tonight.

i mounted a few different pots i had in to a panel to play with them
and see which i preffered the feel of most. as this unit will be
travelling with me to dj gigs and live performances, on the fly
tweakability is essential. i think i've decided on the sealed 9mm
alpha pots. had good luck with these in the past. what are you guys
using for your pots?

thanks for all the help :)

sean