6N9S a-g 6SL7 6SL7GT 1579 double triode tube soviet ussr vintage lamp NEW NOS
The 6N9S double triodes are enclosed in glass bulb and are provided with an octal base and an indirectly heated oxide-coated cathode.
The 6N9S double triodes are resistant to ambient temperature from -60 to +70°C and relative humidity of 95 to 98% at +40°C, as well as to vibration with an acceleration of 2.5g and multiple impact up to 35g.
Best Quality, the Sound is nice - authentic vintage tone.
Type: 6N9S
Filament voltage, Volt: 6.3
Anode voltage, Volt: 250
Grid voltage, Volt: -2
Resistance in cathode circuit, Ohm: --
Filament (heater) current, mA: 300
Anode current, mA: 2.3
Reverse grid current, mkA: 1
Dissipate cathode-heater current, mkA: 20
Mutual conductance, mA/V: 1.7
Gain coefficient: 70
Vibration noise (by RA=2 kOhm), mV: 400
Inter electrode capacitance, pF:
- input: 2.5
- output: 1
- transfer: 4
Operation time, over h: 1500
Limited operating values:
Filament voltage, V: 5,7-7
Anode voltage, V: 275
Cathode - heater voltage, V: 100
Anode dissipation, W: 1.1
Resistance in grid circuit, MOhm: 0.5
Operating environmental conditions:
Acceleration of vibration loads, g: 2,5
by frequencies, Hz: 10-150
Acceleration of multiple impacts, g: 35
Ambient temperature, °С: -60 to +70
Relative humidity at up to 40°C, %: 98
Lot for 1 pc
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