7J12S
Original price was: 90,00 $.79,00 $Current price is: 79,00 $.
Russian 7J12S tube pentode is equivalent of Western Electric 310A (WE310A) was designed for high-frequency voltage amplification. Excellent sound!
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14 in stock
Description
The 7J12S pentodes are enclosed in glass bulb and are provided with an octal base and an indirectly heated oxide-coated cathode. 7J12S was designed for high-frequency voltage amplification in long-distance wire service systems, you can used in some Hi-Fi applications. Perfectly sounding.
- Stamp of technical control department of the manufacturer ” ОТК “
Near equivalent: WE310A. Premium quality vacuum tube!
Technical specifications:
- Filament voltage: 7.35 ± 0.5V
- Filament current: 425mA
- Anode voltage nominal (constant): 250V
- Anode voltage limit (constant): 250V
- Anode current: 5.5 ± 1.5mA
- Grid voltage of the first nominal (constant): -3V
- Reverse grid current of the first: 0.5μA
- Grid voltage second nominal (constant): 135V
- Grid voltage second limit (constant): 180V
- Grid current second: 1.05 ± 0.55mA
- Grid voltage of the third nominal (constant): 0V
- Limit voltage between cathode and heater: 150V
- Leakage current between cathode and heater: 20μA
- Anode insulation resistance: 20MOhm
- Grid insulation resistance of the first: 20MOhm
- Slope: 1.85 ± 0.25mA/V
- Slope at 380 mA filament current: 1.45mA/V
- Maximum power dissipated at the anode: 1.9W
- The highest power dissipated on the second grid: 0.4W
- Output power (approx. 1): 0.4W
- Nonlinear distortion coefficient: no more than 14%
- Internal resistance 500kOhm
- Input capacitance: 5.8 ± 1.2pF
- Output capacitance: 12.5 ± 3.5pF
- Capacitance through: 0.03pF
- Characteristic steepness: not less than 1.3mA/V
- Reverse current of the grid of the first: no more than 1.5μA
The minimum operating time is not less than 6000 hours.
Additional information
| Weight | 0,084 kg |
|---|---|
| Dimensions | 12,5 × 4,0 × 4,0 cm |
| Brand |
SVETLANA |
| Packaging |
Product from factory group packaging |
| Socket type |
6 – Pin PLK 10J12S |
| Condition |
New product |
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