MOTM

----- Original Message -----
From: Tkacs, Ken <ken.tkacs@...>
A driver could have a master tune as well. So if you had
a keyboard CV feeding into one of Mr. Hendry's interval
switches, then into the VCO Driver, and this feeds a row
of uVCOs...could be cool. Very fast adjustments with few
patchcords for basic use, with lots of patch-a-bility for
NON basic use.
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Or, in case folks making 822s and 831 had not considered, you could add  FM
modulation and master fine tune to either the 822 or 831 interval octave
switchers.  Of course, the 1U panel implementation does not support the
panel space necessary to implement that.  BUT, due to some other
"enhancements"  the new PCBs will even have a connection point perfect for
this application. A minimum FM modulation implementation would required only
one resistor and the input jack.  If you wanted it variable, add a pot to
that.  The connection over to the 822 or 831 would be ONE wire per channel.
So, if you wanted, you could make a 1U panel to sit adjacent to the 831 (for
example) with:
1 - master tune pot.
3 - FM attenuators (not reversing)
3 - FM input jacks
The FM jacks could be wired to be normalled so that one voltage could FM all
3 oscillators together if nothing was plugged into the other two.  All the
summing circuits necessary to do that are already in the 822 and 831.
Larry H