(6n3C, 6n3C-E)
General
Tetrode, used in output stages of low frequency amplifiers.
Envelope: glass, with octal base.
Mass 70 g.
Lead diagram
General characteristics:
| Type | 6P3S | 6P3S-E |
| Filament voltage, Volt | 6.3 | 6.3 |
| Anode voltage, Volt | 250 | 250 |
| 1st grid voltage, Volt | -14 | -14 |
| 2nd grid voltage, Volt | 250 | 250 |
| Type | 6P3S | 6P3S-E |
| Filament (heater) current, mA | 900±90 | 880±40 |
| Anode current, mA | 72±18 | 73±13 |
| 2nd grid current, mA | no more than 9 | no more than 6 |
| 1st grid reverse current, mkA | £ 3 | £ 0.5 |
| Cathode current, mA | no less than 275 | - |
| Output power, W | no less than 5.4 | no less than 5.8 |
| Mutual conductance, mA/V | 5.2 to 6.8 | 5.2 to 6.8 |
| Internal resistance, kΩ | 25 | no more than 65 |
| Inter electrode capacitance, pF: | ||
| input | 11±2 | 11 |
| output | 8.2±1.5 | 6.7 |
| transfer | no more than 1 | no more than 1 |
| Operation time, h | ³ 1000 | ³ 5000 |
Limited operating values:
| Type | 6P3S | 6P3S-E | ||
| Filament voltage, V | 5,7-7 | 6-6.6 | ||
| Anode voltage, V | 375 | 250 | ||
| 2nd grid voltage, V | 300 | 250 | ||
| Cathode - heater voltage, V | 100 | 90 / -200 | ||
| Cathode current, mA | - | 90 | ||
| Anode dissipation, W | 20 | 20.5 | ||
| 2nd grid dissipation, W | 2.75 | 2 | ||
| Resistance in 1st grid circuit, kΩ | 500 | 150 | ||
Operating environmental conditions :
| Type | 6P3S | 6P3S-E |
| Acceleration of vibration loads, g | 1.5 | 3 |
| by frequencies, Hz | 50 | 5 to 300 |
| Acceleration of multiple impacts, g | - | 12 |
| Acceleration of single impact, g | - | 100 |
| Continuos acceleration, g | - | 100 |
| Ambient temperature, °Ñ | -60 to +70 | -60 to +160 |
| Relative humidity at up to 40°C, % | 98 | 98 |
Plate and plate-grid curves
