Thanks for the info Richard.This will be the first time i've tried matching my own so definitely appreciate the insight.
Is this info copyright protected or is there somewhere on the web i can view this technique ?
Thanks,Tony
Is this info copyright protected or is there somewhere on the web i can view this technique ?
Thanks,Tony
--- In cgs_synth@yahoogroups.com, Richard Brewster <pugix@...> wrote:
>
> Last week I built a DUSG and matched the transistors using the method
> described in Electronotes #39, p. 6. It's much simpler than Ian
> Frijtz's method, which I tried first. I had trouble getting enough
> resolution on my measurement, only two digits of precision. With the EN
> approach, I got three digits.
>
> Richard Brewster
> http://pugix.com
>
> On 12/19/12 10:00 PM, adematteo wrote:
> > Hi guys,
> > I recently built up the vca3 boards and didn't realize until after the fact that it's recommended to match the bc548's.
> >
> > The fact that it's mentioned on Kens page makes me wonder if i should pull them and match them (ie. how critical is this ?) ?
> >
> > Which leads to my second question what are we measuring and how are we doing it ?
> >
> > I planned on building up Ian Frijtz's Transistor matching circuit for the dual transistors on this and the vco boards so would i be able to use this circuit to match the bc548's as well ?
> >
> > Thanks for any insight you guys can offer,
> > -Tony
> >
> >
>
>
>
> [Non-text portions of this message have been removed]
>