G
Guest
Guest
Yesterday I have idea to make one transistor
low noise preamp. I had intended to
use it for mid class phono in my living room.
I decided to make one transistor preamp with
paralel feedback (for damping moving magnet pick-up resonances
noiselessly). - then I decided to use current leaks in RIAA equalising
capacitor to the ground to do this work.
After six hours of work I have preamp and its sound is nice.
Preamp have some unusual topology which allows me
to use only one 9V battery for power. It is mid-class preamp
for mid-class chassis
Schemo is here:
http://radio.feld.cvut.cz/~vlk/vlkal.gif
Have somebody comments (or improvement ) ?
Have a fun,
xvlk
low noise preamp. I had intended to
use it for mid class phono in my living room.
I decided to make one transistor preamp with
paralel feedback (for damping moving magnet pick-up resonances
noiselessly). - then I decided to use current leaks in RIAA equalising
capacitor to the ground to do this work.
After six hours of work I have preamp and its sound is nice.
Preamp have some unusual topology which allows me
to use only one 9V battery for power. It is mid-class preamp
for mid-class chassis
Schemo is here:
http://radio.feld.cvut.cz/~vlk/vlkal.gif
Have somebody comments (or improvement ) ?
Have a fun,
xvlk