Tocos Cosmos
Tokyo Cosmos Electric Co. LTD

Hum bucking potentiometer 100R

Type RA30Y.
Diameter 27mm
Power rating 2,5 Watt

€ 12.81
€ 15.50

Tocos-Cosmos potentiometers

When you want to use your directly heated output tube with AC heating for the filament,
you need a good sounding hum bucking potentiometer. Even with a DC heating the use of a balancing potentiometer offers sonic advantages.

The Cosmos RA25Y and RA30Y are used by Sun Audio and Kondo and are (for this application) indeed the best sounding potentiometers we could find.

Tocos-Cosmos inside the
Kondo Souga amplifier