MOTM

At 7:47 PM +0100 12/18/01, jhaible@... wrote:
>
>The tolerance is *huge*. And this is part of their character:
>Two of them won't sweep exactly in parallel in a log
>frequency scale even with the same CV and with their relative offset
>adjusted for one center frequency.
>If you like, you can adjust the knob on the pot shaft (or add an
>internal offset trimmer), but this will only set identical
>knob positions for one frequency (12 o'clock position would be
>a reasonable choice).

That's what I said.  Besides, if the vactrols have a 20% tolerance, and the
pots have a 10% tolerance, it could add up to a significant difference.

>Gentlemen, this is a *feature*, and I mean it. Thank God for vactrols
>which prevent the M-410 (and the Mutron Biphase, and the Schulte
>Compact A Phasing, ...) from being as sterile as similar sweeping
>filters without vactrols.

God invented the vactrol?? ;)

>Using these things as a sort of fixed filter bank is a nice extra
>goodie, but it was made and optimized for more demanding tasks.
>
>(This is not meant against using them as fixed filters. I'm still
>blown away from Elhardt's excellent Flute/Recorder patch !)

I often use mine for filter FM :)