Description

Perfectly 6R3S-1 / 6P3C-1 double tetrode tube. Svetlana factory. Military equipment. Never used.

Technical characteristics:

Filament voltage in case of series connection, Volt: 6.3
Filament voltage with filament placed in parallel, Volt: 12.6
Anode voltage, Volt: 350
- 1st grid voltage, Volt: -22
- 2nd grid voltage, Volt: 200
Filament (heater) current in case of series connection, A: 1.05±0.15
Filament (heater) current with filament placed in parallel, A: 2.1±0.3
Anode current of each tetrode, mA: 47.5±17.5
2nd grid current (UC1=0V), mA: no more than 60
Gain coefficient of 1st grid relatively to 2nd grid: 10
Reverse 1st grid current, mkA: no more than 0,5
Vibration noise (at RA=2 kOhm), mV: no more than 800
Inter electrode capacitance, pF::
- input: 13±3
- output: 6±2
Transfer: no more than 0,3
Operation time, h: over 1000

Limited operating values:

Filament voltage in case of series connection, V: 5,7 to 6,8
Filament voltage with filament placed in parallel, V: 11.4 to 13.8
Anode voltage, V: 600
2nd grid voltage, V: 300
1st grid voltage, V: -175
Cathode - heater voltage, V: 100
Cathode current (average/peak), mA: 250/1500
Each anode dissipation, W: 20
1st grid dissipation, W: 1
2nd grid dissipation, W: 7

Operating environmental conditions:

Acceleration of vibration loads, g: 2.5
at the frequencies, Hz: 5-200
Acceleration of multiple impacts, g: 12
Ambient temperature, °C: -60 to +100
Relative humidity at up to 40°C, %: 98
Tubes operating temperature, °C: 250
Cathode heating time, s: 90