After doing so much for the MOSFET output stage, we just had to give a little to the tube stage. First, the power supplies for both the tube stage and the filament heater required beefier, higher quality parts. We started with a new printed circuit board to piggyback the existing board. We use these new parts:
Both power supply bridge rectifiers are replaced with four discreet FRED diodes.
German made Mundorf M-Lytic HV electrolytic capacitors for the main tube stage filters.
Swiss made Axon True Cap Metalized Polypropylene Capacitors.
Mills Non-Inductive Wire Round Resistors.
A massive 25 watt resistor and 105 degree capacitors for the filament heater supply.
*Auricaps and tube sockets are not included
CUSTOMERS INTERESTED IN HAVING US PERFORM THE RESTORATION,
CLICK HERE for shipping and warranty information
CUSTOMERS INTERESTED IN DIY KITS
CLICK HERE to download instructions and necessary tool list. The board is fully assembled and attaches to the main board with silicone adhesive. Terminated connection wiring is attached to the board for easy installation.