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Subject: Re: [motm] 320 differences??

From: Mark <yahoogroups@...>
Date: 2004-03-09

On 3/9/04, Scott Juskiw put forth:
> >They both seem to work fine, except the one I built has a much wider
> >frequency range. It is much slower when the knob is all the way
> >down, and much faster when all the way up, compared to the one I
> >bought used. This difference seems to be much greater than the 5%
> >tolerance of the pots. Any ideas what might be causing this?? Could
> >anyone who has several 320's please comment on how your units
> >differ?? I would like to get them so they have a similar response.
>
>I have four units, all built by myself in assembly line fashion. I've
>measured the maximum frequency (after adding DB-320 daughterboard) of
>eachand found that it ranges from about 450 to about 650 Hz. I'm not
>sure why there is such a variance, but it seems to be normal for this
>module.

Thanks Scott, but if it were only a difference of 200Hz at the top
end, I wouldn't have mentioned it. Using a tuning meter, with the
knobs at "10", the one I built has a top frequency equivalent to G#
-1, but the one I bought built only goes up to A# -4 (a difference of
about three octaves). One the low end, without having to bring in a
geologist or building some kind of timer, around "4" on the knobs,
the one I built will cycle once, while the one I bought used will
cycle ten times. Perhaps one of us made a construction error??
Based on what you say, 320's shouldn't vary that much. Any idea
where I should look??