MOTM

Ok, so here's the question:

Is a VCA usable for CV as well as audio?  I sort of assumed it worked 
for CV... here's where it gets weird

If a VCA can be used for CV, then doesn't that mean I can use it for, 
well, just about anything?  Like I could run a small electric lamp 
through the VCA, and the signal would adjust the brightness?  Or 
adjust the speed of a fan?

Hmm.  If that's the case, what kind of power would be safe to run 
through it?  =]

It will work for DC, but only up to say 4ma. Do not use it to adjust your toaster over or model
railroad speed.

Paul S.




----- Original Message -----

From: <sucrosemusic@...>
To: <motm@yahoogroups.com>
Sent: Thursday, November 15, 2001 11:00 PM
Subject: [motm] Abusing a VCA


> Ok, so here's the question:
>
> Is a VCA usable for CV as well as audio?  I sort of assumed it worked
> for CV... here's where it gets weird
>
> If a VCA can be used for CV, then doesn't that mean I can use it for,
> well, just about anything?  Like I could run a small electric lamp
> through the VCA, and the signal would adjust the brightness?  Or
> adjust the speed of a fan?
>
> Hmm.  If that's the case, what kind of power would be safe to run
> through it?  =]
>
>
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>

>It will work for DC, but only up to say 4ma. Do not use it to adjust
>your toaster over or model railroad speed.

I think toasters and model trains use AC, but that's still very good
advice. Besides, there is already a MIDI spec for toasters.

Afaik, you can't run DC through VCA input of a 110 due to the blocking cap,
but you can use the X input with the switch set to DC.

Is the upcoming dual pan/fade VCA (MOTM-130??) AC or DC coupled??