Val_r
Well-known member
An interesting (I think ) design for a mic preamp optimized for the stereo miking techniques.
I have chosen the 12BZ7 for it's lower Ri, which paralleled reaches around 16K .
The interstage transformer has multitapped connections on both sec's, to enable accurate attenuation from the transformer ratio instead of resistors or pots.
Stages are fixed biased, as you can see.
Please post your opinion/comments/suggestions. :roll:
Respect,
Val.
:idea:
I have chosen the 12BZ7 for it's lower Ri, which paralleled reaches around 16K .
The interstage transformer has multitapped connections on both sec's, to enable accurate attenuation from the transformer ratio instead of resistors or pots.
Stages are fixed biased, as you can see.
Please post your opinion/comments/suggestions. :roll:
Respect,
Val.
:idea: