Archive of the former Yahoo!Groups mailing list: MOTM

Well, after hunting down an obsure issue with the VCO (too little reference
current for the expo. pair)
I got the new pcbs all running 100%. Using a Kenton Pro2000 MIDI-CV, here is
how I got the tracking
set in about 2 minutes (after a 5 min warm-up)

Fout [ideal] Fout [actual] % error

249.94 <<<baseline value I started with
499.88 500.01 0.02%
999.76 999.87 0.01%
1999.52 1999.81 0.01%
3999.1 4000.11 0.02%

By God, THAT's tracking like a mother!!!

I got the same error percentages from 55, 110, 220, 440 hertz octaves. So,
my
claim of 10 octaves of less than 0.1% error holds up! Actually, the average
error
I measured over 9 octaves was 0.0165%.

The best to this prior I have seen was am EMu VCO that over this range was
about 0.275% average error.
So the MOTM-300 is ∗TWENTY∗ times better. A Moog 921B is about 0.35% error.
Pathetic.

It is looking like next Wednesday for VCO shipments to begin. Last week, my
#1 income source (Texas Instruments)
demanded 100% bandwidth ALL WEEK. So, not much got done.

I now have to write the manual (and let RoyT proofread it) and continue to
pack up a zillion parts.

Paul Schreiber