Triode
These are high end Russian Military quality OTK tubes.
The 6C19N / 6S19P Vacuum tube is a Russian Audiophile
glass type power triode used in high-end amplifiers. They
are used in the Transcendent Sound T16 OTL power amplifers
among others, which uses an incredible 16 of these
6C19N / 6S19P tubes!
The Little Dot II++ headphone amplifier and the Balanced
Audio Technology REX VK-32SE preamplifier also use
6C19N / 6S19P tubes.
This tube is also used as a regulating tube in electronic
voltage stabilizers and other control elements.
Electrical Data:
Heater Voltage ........................ 6.3 V
Heater Current ................... 0.3/0.15 A
Anode voltage ..........................110 V
Grid voltage ........................... -7 V
Resistance in cathode circuit:
Ohm ....................................130
Preferred Substitutes ............ 6C19, 6C19p, 6C19PI,
6S19, 6S19P, 6S19Pi