Schematic by Jean Hiraga published in "L'Audiophile" named Némésis.
Schematic by Pierre Johannet published in
"L'Audiophile" based on Hiraga's Némésis.
The power supply is identical to the compensated version.
Schematic by Pierre Johannet published in
"L'Audiophile" named Super Némésis Compensated.
To allow a better bass response and tough use an output trafo
without an air gap (higher primary inductance) It uses a second
primary to avoid the magnetic core saturation. This second
primary is powered (without any signal) by a second 2SK135, the
current flowing in the opposite way cancels the magnetic field of
the first primary.
In the prototype, he used a toroidal power supply transformer
(Metalimphy 2x110V/2x40V, 300VA). Only one secondary was used.
You can also use an audio output transformer 2x64Ohms/8Ohms
*without* an air gap.
Such an idea could also be used in tubes circuits.
