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6P3C-1 (closest to Cyrillic way of writting)

(pronounced as 6R3S-1)

Double beam tetrode for output stages of low frequency amplifiers.
Envelope: glass.
Mass 100 g.

Lead diagram

General 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 1.050.15
Filament (heater) current with filament placed in parallel, A 2.10.3
Anode current of each tetrode, mA 47.517.5
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 133
output 62
transfer no more than 0,3
Operation time, h ≥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 40C, % 98
Tubes operating temperature, C 250
Cathode heating time, s 90

CURVES


Plate curves


Plate-grid curves