help calibrating my ASM-1

Hess Hodge hess at surrealistic.net
Tue Aug 15 22:13:34 CEST 2000


Hey, remember me?  I just finished building my ASM-1...  Now I need help
in calibrating it...  I thought for sure that I'd be able to find
references to this procedure in the archives, but to no avail...  So, does
anyone have any helpful hints they could give me?  The things I am having
trouble with are:

VCO : v/oct
VCF : v/oct and offset trimmers

Now, I understand the concept behind v/oct calibration.  The specific
procedure is what I am looking for.  I have been trying to calibrate the
VCOs by using the frequency counter on my Fluke, but I have not had much
luck.  Should I be listening for a beat frequency between the two
oscillators to do the calibration?  Oh, and I'm pretty much clueless on
how to calibrate the VCF...   ;)

Any help is appreciated!

-Hess




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