Lorenz circuit (was: Re: [sdiy] analogue multipliers?)

[synth at oldmail.charlielamm.com]

Getting the frequency to change might be a bit of work....I don't think 
it's practical to have all the integrator caps on rotary switches.

I see in the archives there was talk about using 3080's on the inputs of
each integrator. Maybe vactrols?  Has anyone done this?

On Sun, 11 Jul 2004, Thom Ash wrote:

> http://frank.harvard.edu/~paulh/misc/lorenz.htm
> 
> i thought this might make quite a tasty LFO...
> 
> i'm having a spot of bother getting hold of the analogue multipliers
> though, anyone know where i can pick up some AD633s (or any other cheap
> four quadrant multipliers) in the UK? cheers!
> 
> thom [from AH]
> 
>