Lamp 6P6S - output beam tetrode. Designed for operation in single-ended and push-pull output circuits of low frequency receivers and amplifiers. Can be used as master oscillator and frequency multiplier. Indirectly heated oxide cathode. Works in any position. Design - in a glass shell with an octal base. Durability not less than 500 hours. Weight not more than 38 g.

1. Heater voltage 6.3 ± 0.6 V.
2. Filament current 450 ± 40 mA.
3. Nominal anode voltage (constant) 250 V.
4. The anode voltage limit (constant) 350 V.
5. Anode current 45 ± 12 mA.
6. The voltage of the first grid (constant) is 12.5 V.
7. Reverse current of the first grid, no more than 2 µA.
8. The second grid voltage is rated (constant) 250 V.
9. The second limit grid voltage (constant) is 310 V.
10. Secondary grid current, no more than 7.5 mA.
11. The power dissipated by the anode is 13.2 W.
12. The power dissipated by the second grid is 2.2 watts.
13. The voltage between the cathode and the heater is maximum (constant) 100 V.
14. The slope of the characteristic is 4.1 ± 1.1 mA / V.
15. Internal resistance 52 kOhm.
16. Output power, not less than 3.6 watts.
17. Coefficient of nonlinear distortions 8%.
18. Input capacitance 9.5 ± 1.6 pF.
19. Output capacitance 6.5 ± 2.7 pF.
20. Through passage capacity, no more than 0.9 pF.
21. Design – glass with an octal base.

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