ASM-1 Filter Tuning...
Christopher_List at sonymusic.com
Christopher_List at sonymusic.com
Tue Dec 17 20:31:08 CET 1996
> On the next ASM that I build, I think I'll just leave off
> these parts entirely and put a jumper in the 220 ohm
> resistor spots, and see if the filter is offset-free.
These are certainly not the only trimmer that can be left off by the
expense-concious builder.
Gene did us a great service by putting in all possible triimming options
- but you need not use them all.
The Gate Level - for instance. I have all my gates hard set to 3.15v by
always using a 20K/75K divider on the gate inputs. Imperfect resistors
may make one gate trigger level slightly different from another - but
with 1% resistors (that are A LOT cheaper than trimmers!) this is not
much of a problem. It's easy to solder in two resistors into thge spot
where the trimmer goes - so y'all might wanna give it a try....
- CList
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