The generator pentode GU-50 is designed to amplify power and generate high-frequency oscillations in transmitters and low-frequency amplifiers for power amplification. Structural design - glass.
Working position — vertical, conclusions down.
The cathode is indirectly heated oxide.

1. Filament current 0.705 ± 0.065 A.
2. Anode current, not less than 50 mA.
3. Current of the 1st grid, no more than 8 mA.
4. Current of the 2nd grid, no more than 5 mA.
5. The current of the 1st grid is reversed (at Ic2=15 mA), not more than 15 μA.
6. Reverse current of the 3rd grid (at Ic2=15 mA), no more than 25 μA.
7. Leakage current between the cathode and the heater, not more than 100 μA.
8. Permeability of the 1st grid relative to the 2nd grid 19 ± 3%.
9. The voltage of the 1st grid at the operating point is negative 40 ± 10 V.
10. The closing voltage of the 3rd grid is negative 205 ± 55 V.
11. Slope 4 ± 1 mA/V.
12. Vibrational power:
— at Un=12.6 V, not less than 60 W,
— at Un=10.8 V, not less than 52 W.
13. Interelectrode capacitances, pF:
– grid – cathode 14 ± 1,
– anode – cathode 9.15 ± 1.15,
– grid – anode, not more than 0.1.
14. Weight – no more than 100 g.
15. Heating voltage 10.8 – 14.5 V.
16. Power dissipated by the anode 40 W.
17. Operating ambient temperature range from -60 to +100 C.
18. Durability – not less than 1750 hours.

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Returns & Changes (Restocking Fee)
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Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.