This Russian tube is full bodied and bright with a more straightforward presentation. It packs a lot of bite with its higher-than-normal gain. In overdrive, it offers a lot of crunchy fizz. High gain preamplifier tube with ultra low noise and detailed, musical tone. Unique spiral filament eliminates filament to cathode induced hum common on amplifiers that use AC on the filaments.
Superior high gain short plate format Twin Triode, with ultra-low noise and detailed, musical tone.
- Ultra-low noise thanks to unique spiral filament which eliminates cathode-to-filament induced hum on certain amps
- ECC83/7025 equivalent
