Descret OTA was "that Japanese site"

[tomg]

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> From: tomg <vco at mindspring.com>
> To: synth-diy at mailhost.bpa.nl
> Subject: Descret OTA was "that Japanese site"
> Date: Saturday, February 20, 1999 6:22 PM
> 
> 
> I built an ota from that pic on that Japanese site. Works a lot like a
> 3080. I'm wondering exactly how much like a 3080????
> I built a VCA out of it and works just like you think it would.....

BTW if you remove the bias 3904 & diode and replace it with a 47K resistor
to -V this becomes a opamp. I don't know how good of an opamp yet, it may
require a complementary pair on the output to become a "real" opamp, but
initial gain tests seem to work. 
-tg