[sdiy] Transistor help

[Kevin Lightner]

>Transistor matching will show up the most in
>control voltage breakthrough in a ladder filter.
>
>using 'unmatched' transistors does not mean that
>they are 'not' matched... just that you did not
>test for that parameter.
>
>Given the choice between unmatched transistors
>in VCF, VCA etc... I go for matched. I'm mostly using
>monolythic pairs, or arrays. They sound much better
>than the dumb luck filters I've tried.
>
>CA3046 is like $.25 each in quantity, so why not
>use 'em. ARP and Moog both did...
>
>H^) harry
>
>  >

That's the thing. :)
I'm not looking for a DC thumping filter per se, but "Moog" filters 
made with transistor arrays simply sound different than discretes. 
I'm not hugely into voodoo, but I've heard enough Moogs and the 
difference is fairly obvious. A 904A, Mini and Prodigy sound very 
different to me.

I also have a theory. Wrestle this one amongst yourselves. :)
The mini has a special character. People have pointed to the filter, 
oscs, envs, glide, etc.
But it's one of the few, if only synths that runs on the low voltage 
of +/- 10v.
With signal to noise ratios and other variances, isn't it reasonable 
to assume that some of the Moog sound is due to the inherent lack of 
voltage swing?

-- 
Regards,
Kevin Lightner

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