[sdiy] expo converter

[Scott Bernardi]

Your attached schematic has the expo converter driving an OTA through a
470K resistor. The current input of an OTA just looks like a couple of
diode drops above the V- supply, so just run your 2N3906 collector to
470k into two diodes to V-. You can put an ammeter in series, or measure
the voltage across the 470k and use ohms law to get the current.

Benjamin Smith wrote:
> 
> Whilst constructing VCO5 B from Tom G's cookbook, encountered several
> problems, hence I have isolated the exponential converter and constructed it
> seperatley.
> 
> How would I go about loading the output to test if it works or not?
> 
> Thank you,
> 
> Ben
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-- 
Scott Bernardi
sbernardi at home.net