[sdiy] Discrete OTA

[ASSI]

On Monday 07 April 2014, 10:48:53, Roman Sowa wrote:
> all this recent talk about 2164 Osamu's compensation made me finally go
> and seek for this circuit. What a surprise it was when I saw it's
> basically the circuit I originally posted here in 1999, only refined to
> find the magic number of 0.27V bias.

I'm fairly sure that some folks have called it Sowa/Hoshuyama compensation 
or something similar on this list, at least after Ian Fritz asked about the 
relation to your 1999 posting.  Here's the mail from Osamu recognizing you 
in a thread from 2009:

http://dropmix.xs4all.nl/pipermail/synth-diy/2009-September/019622.html

As for the magic number, I derived that some time ago and it's agreeing well 
enough with both the experiment and the simulation:

http://dropmix.xs4all.nl/pipermail/synth-diy/2011-March/031451.html


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

SD adaptations for Waldorf Q V3.00R3 and Q+ V3.54R2:
http://Synth.Stromeko.net/Downloads.html#WaldorfSDada