Keyboard circuit (was Stretch tuning a resistor string)

[Paul Schreiber]

The tempco pin is not on the 3374, just on the 3340.

But using a 3340 tempco output (buffered) is a *clever* idea!

Paul S.

----- Original Message -----
From: Hallgeir Helland <hhelland at mailandnews.com>
To: DIY <synth-diy at mailhost.bpa.nl>
Sent: Sunday, January 23, 2000 7:02 AM
Subject: Re: Keyboard circuit (was Stretch tuning a resistor string)


Hugo Haesaert wrote:
>
> Also no easy way to use this ref in a normal VC osc, multipliers
> would introduce extra compensation and other errors .  That's the
> reason why the cem3340-3345 have them on chip ;-)

Hi all (especially Paul S.)

Would it not be possible to feed the resistor string,
or at least control its current, with the tempco
output of the CEM 3374 dual VCO?

Would not this give a neato temperature compensation?

Hallgeir
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