[sdiy] ASM ADSR, Tempco resistors

[Dave Magnuson]

Did you make your own circuit board, or did you buy one?  This makes a big 
difference, since with a pre-made PCB you can assume there's no layout 
errors...

Dave


At 11:42 AM 7/7/04, matt sieling wrote:

>Hello,
>
>I'm building an ASM1 synth and I have a question about the ADSR. After 
>building it I find that my output is high when the gate is low. By "high" 
>I mean it sits at the sustain level. When a positive gate comes the output 
>goes low. The release occurs when it seems the attack should appear and 
>vice versa. Does anyone have any idea why this might occur? Shouldn't the 
>output be low when the gate is low? I've been trying to crunch the circuit 
>but I can't seem to find the answer. Also, does anyone know where to find 
>tempco resistors as specified in some of the ASM schematics?
>
>
>
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