Differential input stage in PP tube amps
Patrick,
Noticed an error in the MJE340 current source circuit in the first
schematic. (Correct in the others.)
why do you use only one transistor. Using two would also increase the
output impedance....
----------- V+
| |
R LOAD
| |
| C
--------B Q1
| E
C |
Q2 B--------
E |
| Re
| |
----------- GND
Hp
|