SV: Re: SV: [sdiy] QVCO schemo up

[karl dalen]

--- Harry Bissell Jr <harrybissell at prodigy.net> skrev:

> no ME...
> 
> don't even DREAM about building one before me !!!
> 
> OK... F-it.

Ha, i just, (there, flipped the power on) finished it! :)

Freaking hell, this cirquit rocks!

KD
  
> (go ahead) BUILD one.
> 
> I SPICE simulated it, already. It works well
> as advertized.  DO NOT try it with a 3080
> it will generate quasi-triangle waves. You need
> the LM13700 (or 13600 I presume) with the diode
> linearization.
> 
> I did get offset on the two waves in opposite
> directions. I have not 'trimmed' the simulation.
> 
> It takes hundreds of cycles to come up to stable
> amplitude. I suspect this will be similar to an old
> Wien-bridge oscillator which takes a long time to
> stabilize after a frequency shift, but I didn't
> simulate that, yet.
> 
> This might be the simplest sine-wave oscillator that
> I've seen.
> 
> Ian... you should send these to EDN magazine and pimp
> them for the $150.  You'd be sure to get the money
> (in about six months :^)  You'd even have your name in
> glorious black and white... otoh you could use the
> even
> more exclusive "Electronotes" to get your
> electro-notariaty   :^P
> 
> H^) harry
> 
> --- karl dalen <dalenkarl at yahoo.se> wrote:
> 
> > This is so interesting i have to build one right
> > away! :)
> > 
> > KD
> > 
>