6N8S = 6SN7 = ECC32 = 6CC10 tube. Double triode. Old Tashkent
The 6N8S double triode is designed for amplification of low-frequency voltage.
The 6N8S double triodes are enclosed in glass bulb and are provided with an octal base and an indirectly heated oxide-coated cathode.
The 6N8S double triodes are resistant to ambient temperature from -60 to +70В°C and relative humidity of 95 to 98% at +20В°C, as well as to vibration with an acceleration of 1.5 g.
Best Quality, the Sound is nice - authentic vintage tone
All tubes new, military equipment and have "OTK" mark. Near equivalent: 6SN7, ECC32 and 6CC10.
The tube is manufactured by the NEVZ, Novosibirsk, Russia.
Filament voltage, Volt: 6.3
Anode voltage, Volt: 250
Grid voltage, Volt: -8
Resistance in cathode circuit, Ohm: --
Filament (heater) current, mA: 600
Anode current, mA: 9
Reverse grid current, mkA: £3
Dissipate cathode-heater current, mkA: £50
Mutual conductance, mA/V: 3±1
Gain coefficient: 21.5
Inter electrode capacitance, pF:
- input: 3
- output: 1.2
- transfer: 4
Operation time over, h: 2000
Limited operating values:
Filament voltage, V: 5,7-6.9
Anode voltage, V: 330
Cathode - heater voltage, V: 100
Cathode current, mA: 20
Anode dissipation, W: 2.75
Resistance in grid circuit, MOhm: 0.5
Operating environmental conditions:
Acceleration of vibration loads, g: 1.5
by frequencies, Hz: 50
Ambient temperature, °С: -60 to +70
Relative humidity at up to 40°C, %: 98
All datasheets here.