[sdiy] transistor substitution question

[René Schmitz]

Hi Robert and List,

Robert Roesler wrote:
> Hi all,
> 
> I'm building Rene Schmitz' VCA2, and I was wondering if there's any reason
> *not* to substitute the bc550's with bc548's. I have 548's, and they seem to
> work as well as the 550's (I only have a couple of the 550's, and I'm making
> several VCAs).
> 
> ANy help and handholding is appreciated.

Well, I chose the 550s because they are the lower noise version of the 
548. So that means the circuit will work with the 548 as well. Only that 
the noise will be somewhat higher.

Cheers,
  René

-- 
uzs159 at uni-bonn.de
http://www.uni-bonn.de/~uzs159