[sdiy] VCO Drift

[Roy J. Tellason]

On Saturday 29 July 2006 09:29 pm, Paul Perry wrote:
> If you are going to do this, you might as well
> build a little oven for the ENTIRE circuitry.
> This isn't as crazy as it sounds.... and once you get up to
> half a dozen voices, it would be a real saving.
>
> paul perry Melbourne Australia

One place I used to work for did exactly that.  They'd buy this thick sheet 
insulation stuff,  4 x 8 foot sheets,  cut it up into somewhat smaller 
chunks,  and then "mill" a pocket into it and stuff a whole circuit in there.  
The material is so easy to work you could probably do that "milling" with 
just a drill bit,  though if you want a straight-sided pocket a drill press 
would be a nice thing to have.

> ----- Original Message -----
> From: "Tim Ressel"
> Had a thought. I'm using the heater servo method on my
> VCOs to keep the expo convertor in line. That means
> the polyprop cap is probably the next biggest in terms
> of tempco. I wonder if the heater servo trick would
> work for it as well?

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