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Re: Matched transistors in VCA (CGS64)

2007-06-19 by bill bigrig

Howdy,

This is going to sound stupid, but after trying
tosize transistors for a project, I have NO idea what
HFE or Vbe is. Could you give me a brief explanation/
Thanx
Rig

--- Louis van Dompselaar <louis@...> wrote:

>
> > Would matching with the transistor tester in a DMM
> do the trick, or do
> > you need to measure parameters other than HFE?
>
> Transistors are usually matched on Vbe.
>
> That said, transistors /from the same batch/ that
> are close in Hfe are
> probably
> close in other specs as well. So yes, you might get
> away with checking Hfe.
>
> I did just that building the Yusynth Minimoog clone
> and it sounds great and
> even tracks well enough. That might also be plain
> good fortune though ;)
>
> Check this thread:
>
http://electro-music.com/forum/viewtopic.php?highlight=matching&t=18365
>
> Louis
>
>
>
> [Non-text portions of this message have been
> removed]
>
>




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