Now that is weird. The LF 356 was selected because it is meant to be precise!
Ken
Ken Stone sasami@... or sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
Ken
>After many hours of troubleshooting my asr is working. I never figured_______________________________________________________________________
>out what was wrong with the board, even after breadboarding parts of
>the circuit to verify voltages.
>
>I had to hand match the buffer amps in order for there to be no counter
>state offsets, and I only have 3 that match! I'm going to order 10
>more in the hopes of finding a 4th that matches the rest of the 356's
>on the board. I know I shouldn't have to do this, but this board
>requires it. I also installed two trimpots on the input buffer to
>scale the output cv correctly. For some reason I ended up with a 300mV
>offset on the outputs. It's very kludge but at least it's working
>right. And I've already had a lot of fun with it; with one 356
>missing I get this cool "digital computer" type of sound when driving a
>vco.
>
>Thanks to Ken and cn10012t6 for your plentiful pointers towards getting
>the board to work.
>
>Keith
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>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
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Ken Stone sasami@... or sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>