Shown with 717A's
Shown with 6SG7GT's
Looks even better in a dark room!
This is the standard for the Gerus Audio!
Over the years I've used Hammond, Electra-Print, Transcendar and Pliton OPT's.
The only one that comes close to the Lundahl is Plitron, and they cost twice as much and take up 3 times the space!
You can't beat the Lundahl's for the Price!
The high voltage power supply is a "Full Wave Bridge" using two solid state diodes with the 5U4G rectifier tube.
What is benefit of this?
By using a "Full Wave Bridge" rectifier the resistance of the power transformer is 1/4 of the traditional "Full Wave". The end result is an amplifier with a higher damping factor.
The filaments of the input/driver and the power tubes are heated with DC...
Whats that mean?
"There is no HUM"