[sdiy] tri VCO for Ring Mod?

[Ken Stone]

>Anyone know of a tri core VCO that doesn't require expensive matched PNPs?
>Or how about some inexpensive matched PNPs?

I tested a pile of 2N3906 recently for use as matched pairs. I could have
just used them straight from the bag. They all matched. Basically, with
modern manufacturing, if you get them from the same production batch, there
is a good chance they will match. Of course a nice expensive dual monolythic
PNP is a better choice, but considering your application, I doubt you'd
notice any degradation of performance.

Ken
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
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