T
The Phantom
Guest
On Thu, 22 Mar 2007 20:33:00 GMT, larry <larry@thishere.com> wrote:
author says, "With C3 the gain of T2 is now R4 in paralell with the input
impedance of T1 / the small signal emitter resistance of T2."
He *should* say "With C3 the gain of T2 is now R1 in parallel with the
input impedance of T1 / the small signal emitter resistance of T2."
On this page, just before the image labeled "Harmonic Distortion", theHi all,
I'm a beginner in electronics and would appreciate a little help.
The problem I'm having is that all the books for beginners that I've read. Tend to go from
resistors, capacitors, diodes and coils in series and parellel networks.
To imaginary transistor circuits with no definition of how these effect each other and how
the values of resistors and capacitors where arrived at.
Non of the books I've read so far, are any help in this aspect of circuit analysis. I tried to
work it out from first principles. I keep finding that my calculations don't agree with
the circuit designers numbers.
Take the low voltage preamp (attached) for EG.
You can see all of it at www.zen22142.zen.co.uk/Circuits/Audio/lvpreamp.htm.
author says, "With C3 the gain of T2 is now R4 in paralell with the input
impedance of T1 / the small signal emitter resistance of T2."
He *should* say "With C3 the gain of T2 is now R1 in parallel with the
input impedance of T1 / the small signal emitter resistance of T2."
It doesn't matter how I calculate the resistors. I can't get the 1.5v at the base of T2,
or anything close to 1.5v.
I can't work out what I'm doing wrong.
Any help or www. address with transistor circuit analysis (for ideots)
would be appreciated.
Thanks