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<DIV><FONT face=Arial size=2>Hello everybody.. just woke up to a crazy
little burst of snow here in NC.. wierd.. </FONT></DIV>
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<DIV><FONT face=Arial size=2>Anyhow.. As you probably know i'm
modding the bejezzus out of my adv-bass.. In my quest to make it
digitally controlled, i've hit a few snags.. so maybe you can help me
out.. </FONT></DIV>
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<DIV><FONT face=Arial size=2>1) I am converting it to digital
control.. mostly thru digital pots.. a few things with
DAC.. so.. for the digital pots, i have to use 5v input, and rather then
use way more opamps then i want to deal with, i would like to make it operate on
5v possibly with a bipolar or just 12v output stage if necessary..
So.. </FONT></DIV>
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<DIV><FONT face=Arial size=2>I've done some crude experiments with the Trigger
section just to see how it reacts to switching from +/-12v to just
+5v.. I've tried with tl082s.. and i just can't get the
trigger ratio right.. and it always triggers.. so.. since i broke down and got a
few lm324s, i tried those.. and it seems to be working correctly.. i
then went on and built the impact part using the digital
potentiometers.. all good so far.. if i just switch all
my opamps in the design, will it carry through the rest of the circuit properly?
</FONT></DIV>
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<DIV><FONT face=Arial size=2>2) I plan to use a digital potentiometer to
control the decay time.. but the highest value i can come up with is
100k.. so i'm thinking i can change the capacitor and get about the same decay
time? any recommendations for a value? </FONT></DIV>
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<DIV><FONT face=Arial size=2>thanks guys! :-) </FONT></DIV>
<DIV><FONT face=Arial size=2>--billie</FONT></DIV>
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