Ping: Gurus. MAT-04 EXPO for (2) VCO

[tomg]

Hi Harry, How is it in Mini-Modular land?

Tom's $0.02....

I've done it using all sorts of stuff. I'm pretty sure mat-04s will work
too. I discovered once that a 4007 could be used instead of J112s
and built a dual vco that used a single 4007 for both chopper fets.

This was a bad idea! It seemed to work fine but in fact did not. My
point being that I was trying to be just too damm cheap! You can
probably avoid lurking problems and future fixes by using two,
regardless the fact that one is more than likely fine.

Tom



> I'm building the Chris MacDonald "Mini-Modular"
> 
> I'm considering using the MAT-04 for the expo... in fact I'm even
> thinking
> on ONE MAT-04 shared by two oscillators.
> 
> The MAT-04 has a separate substrate so that should not be a problem...
> but
> what about soft-sync, or even thermal effects between transistor pairs
> ???
> 
> Comments please...
> 
> H^)   harry  (i've never really done this sort of thing before... have
> you ????)
>