6C6 vs 310A driver tubes for 2A3 amp...
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What about these? are they true direct replacements?
Eqivalents WE310A
1975 by Svetlana Tube Factory
General characteristics:
Type: 10J12S
Filament voltage, B: 10 ± 0,7
Filament current, mA: 320
Anode voltage nominal (DC), V: 250
Anode voltage limit (DC), V: 250
Anode, mA: 5,5 ± 1,5
First nominal grid voltage (DC), V: minus 3
Backlash first, uA: 0.5
Second nominal grid voltage (DC), V: 135
A second threshold voltage grid (DC), V: 180
Grid current second, mA: 1,05 ± 0,55
Third nominal grid voltage (DC), V: 0
Withstand voltage between cathode and heater, V: 150
Leakage current between the cathode and heater, uA: 20
Insulation resistance of the anode, mOm: 20
Insulation resistance of the grid of the first, mOm: 20
Slope, mA/V: 1,85 ± 0,25
Slope at a current 300 mA filament, mA/V: 1.45
The maximum power dissipation at the anode, W: 1.9
The maximum power dissipated in the second grid, W: 0.4
Output power, W: 0.4
Total harmonic distortion less than: 14%
The internal resistance of, ohms: 500
Input capacity, pF: 5,8 ± 1,2
Output Capacity, pF: 12,5 ± 3,5
Capacitance checkpoint, pF: 0.03
Criterion of durability:
- transconductance, not less than, mA/V: 1.3
- backlash first, no more than, mkA: 1.5
Weight 50 g
Working conditions:
- temperature from -60 to +70 ° C
- relative humidity of 95-98% at +20 ° C
- mechanical vibration loads
Time life 6000 hours
Eqivalents WE310A
1975 by Svetlana Tube Factory
General characteristics:
Type: 10J12S
Filament voltage, B: 10 ± 0,7
Filament current, mA: 320
Anode voltage nominal (DC), V: 250
Anode voltage limit (DC), V: 250
Anode, mA: 5,5 ± 1,5
First nominal grid voltage (DC), V: minus 3
Backlash first, uA: 0.5
Second nominal grid voltage (DC), V: 135
A second threshold voltage grid (DC), V: 180
Grid current second, mA: 1,05 ± 0,55
Third nominal grid voltage (DC), V: 0
Withstand voltage between cathode and heater, V: 150
Leakage current between the cathode and heater, uA: 20
Insulation resistance of the anode, mOm: 20
Insulation resistance of the grid of the first, mOm: 20
Slope, mA/V: 1,85 ± 0,25
Slope at a current 300 mA filament, mA/V: 1.45
The maximum power dissipation at the anode, W: 1.9
The maximum power dissipated in the second grid, W: 0.4
Output power, W: 0.4
Total harmonic distortion less than: 14%
The internal resistance of, ohms: 500
Input capacity, pF: 5,8 ± 1,2
Output Capacity, pF: 12,5 ± 3,5
Capacitance checkpoint, pF: 0.03
Criterion of durability:
- transconductance, not less than, mA/V: 1.3
- backlash first, no more than, mkA: 1.5
Weight 50 g
Working conditions:
- temperature from -60 to +70 ° C
- relative humidity of 95-98% at +20 ° C
- mechanical vibration loads
Time life 6000 hours
