Ringmod transformers

[Ken Stone]

For the simplest, low parts oscillator, use a 4046 CMOS VCO. I used to use
one with my transformer based ring mod. I don't even remember if I bothered
to buffer the output. Otherwise, an op amp can easilly be wired as a trangle
wave oscillator. Just look for some of the non voltage controlled LFO
designs, and reduce the timing capacitor size.

Ken

>
>	Wonderful, I and the 2 others who asked me to forward anything I 
>might have learned thank you. =) Now another silly question for the 
>lot of you.. I would like to build a dirt-simple oscillator... no need for
>voltage control or anything, just something that could put out a sound 
>and live on a (9v? lithium?) battery without eating too much of it. 
>Waveform is irrelevent, though I'd prefer something with more harmonics than 
>fewer.. and I don't care how precise its shape is. The good side is that 
>linearity and tolerances are out the window. =) 
>	What I want to do it put it in the box with the ring mod, and use a 
>normalled jack to allow a mod input for the ring modulation, but to have this 
>little beauty there when I have no mod input. Make sense? It'd need one 
>coarse-tune pot to control pitch. Does any such circuit exist, can one be 
>made up quickly, or is there someone here willing to design one for an 
>appropriate fee? It's not a major longing, but it would sure make my 
>little ringmod box a little more versatile, and save me the trouble of using 
>up a whole synth when all i want is a constant pitch sawtooth-wave 
>modulating a 606... Thanks in advance!!!
>
>	Jason
>
>	(the beginnings of a literally modular empire!)
>
>
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                Ken Stone  sasami at blaze.net.au
                   ** Catgirl Paradise **
               <http://www.anime.net/~kens/>
         ** Australian Miniature Horses and ponies **
             <http://www.blaze.net.au/~sasami/>
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