[sdiy] uA726 temp setting

[Peter Grenader]

If somebody suggests he try a 3080 instead of a vactrol i'm gonna scream.

- P


> 
> Btw, the whole thing about this Sonic Six weirdness is that since
> there's only one transistor per vco and no init freq trims. The temp
> setting affects both the base freq and low end scaling heavily.
> So it's like playing baseball on a rotating field. ;-)
> 
> Btw, vactrols came to rescue here in a most non EM type way.
> I have a remote camera on this property. Good for security, but also
> because in a geodesic dome, there's blind spots with no windows and
> we can't see if UPS is here, etc.
> The driveway is over 150' long.
> 
> It's a consumer Sony handicam on a rotatable, tiltable base about 60'
> feet away from the house.
> But the stock zoom control was via a membrane "slide pot."
> A resistive coating applied to a thin, flexible sheet that's
> impossible to solder to.
> But I was able to open the camera and added some wires that then went
> to two vactrols.
> The vactrols are controlled remotely, but offer isolation between the
> house and camera that I felt was needed. I didn't want some sort of
> damage to the camera via too much current or having their circuitry
> actually hooked to long runs of buried wires. So, the vactrols work
> excellently as a go between in this application and not only can I
> zoom in and out like before, I can remotely control the *speed* of
> the zooming as well. :)
> 
> This was why I mentioned vactrols as a go between for controlling env pots. :)