Product details
NOS 6J9G-V mini pentode tubes.
Two tubes in one lot.
High-frequency ultra-miniature pentode with a high slope characteristic, offering enhanced reliability and mechanical strength. Designed for use in high-frequency voltage amplification circuits.
The 6Zh9G-V high-frequency pentode is used in wideband amplifiers for general-purpose and specialised radio-electronic equipment. Operates in any position. The 6Zh9G-V pentode is manufactured in a miniature glass envelope. It has an 8-pin wire-lead base. The cathode is an indirect-heated oxide cathode.
Dimensions Source: 6Zh9G-V pentode: - tube height – 43 mm;
- tube diameter – 13 mm;
- lead length – not less than 35 mm;
- lead diameter – 0.4 mm.
Weight not exceeding 6 g.
Service life not less than 500 hours.
Explanation of the high-frequency pentode marking:
6Zh9G-V 6 – a number indicating the rounded value of the lamp’s filament voltage in volts; a letter denoting the type of lamp: Ж – high-frequency pentode with a short characteristic; 9 – the serial number of this tube type; Г – a letter characterising the design: Г – ultra-miniature, in a glass envelope, with a diameter exceeding 10.5 mm; В – a tube with enhanced reliability and mechanical strength
Technical specifications and electrical parameters of the 6Zh9G-V tube:
Nominal electrical data:
• Filament voltage, V 6.3 ±0.6 •
Filament current, mA 310 ±30 •
Anode voltage, V 120 •
Second grid voltage, V 120 •
Cathode circuit resistance for automatic bias, Ω 82 •
Anode circuit current, mA 15 •
Current in the second grid circuit, mA 5.5 •
Slope of the characteristic curve, mA/V 17 •
Input resistance, kΩ 5 •
Equivalent internal noise resistance, Ω 0.35
Maximum permissible electrical parameters: •
Maximum anode voltage, V 150 • Maximum voltage across the second grid, V 125 • Maximum power dissipated at the anode, W 2.4 • Maximum power dissipated at the second grid, W 0.7 • Maximum current in the cathode circuit, mA 35 • Maximum cathode-heater voltage, V 100 • Maximum resistance in the first grid circuit, mΩ 1 • Input capacitance, pF 7.5 • Output capacitance, pF 3.4 • Through capacitance, pF 0.055 • Miniature glass envelope
