[sdiy] AN299 VCO (was: SDIY list troubles)

[flightofharmony at comcast.net]

Ah-hah...

I hadn't even thought about that (newbie) - I might have to give it another try then, using the correct transistors.
It's a good little utility VCO with a clean waveform, worth a shot. Thanks!

~flight
 -------------- Original message ----------------------
From: "Paul Perry" <pfperry at melbpc.org.au>
> Anyone using the CA3046 in feedback stabilized heater mode, note that the
> transistors in the chip have to be the same ones used in the application
> note.
> Although the transistors are identical electrically, because of the
> different physical placement in the chip, for the heater & sensor
> transistors to operate properly, I think they have to be as shown in the
> note.
> 
> I haven't tried this circuit myself, but I seem to remember seeing something
> about this.
> 
> paul perry Melbourne Australia
> 
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