[sdiy] Ovens for oscillators?

[sasami at blaze.net.au]

On reference:  uA726

Tempcos are better than ovens. Much better.

Ken

>Hi everyone,
>
>I know that some precision quartz crystal oscillators use 
ovens to keep the
>circuitry's temperature elevated above room temperature by 
several degrees.
>The exact temperature of the oven is closely regulated, to 
prevent
>temperature drift affecting the components. 
>
>Now I know that this sounds like an extreme measure to 
suggest for
>home-built synth oscillators, but has anyone tried it? 
Would it eliminate
>the need for special tempco resistors? I realize that if 
the oven's power
>failed, the oscillator might indeed need recalibration 
afterward, or at
>least a long warm up time before use. Unless special mobile 
power sources
>were employed, it would make the synth less mobile, and 
probably not suited
>for taking to a live gig. However, for an experimental 
synth that always
>stayed in one location, and always supplied power to the 
ovens, might it be
>useful?
>
>Later,
>Glen