1 X 1J29B-V High-frequency subminiature pentode of increased reliability. OTK. Military acceptance (16). 1986. PCS 1.
The Tubes are never used. 

High-frequency subminiature pentode of increased reliability.
It is designed to generate and amplify high frequency oscillations in the range up to 60 MHz.
Oxide indirect oxide cathode.
Works in any position.
Durability is not less than 2000 hours.
Weight not more than 4 g.

Main technical characteristics
Nominal electrical data:
• Heating voltage, V ...... 1,2 (2,4)
• Current of heating, mA ... 60 (30)
• Voltage at the anode, V ...... 60
• Voltage on the second grid, V ...... 45
• Voltage at the first grid, V ...... 0
• Current in the anode circuit, mA ...... 5,3
• Current in the circuit of the second grid, mA ...... no more than 0.5
• Steepness of the characteristic, mA / V ...... 2.5
• Input resistance, kΩ ..... 53
• Equivalent internal noise resistance, Ohm ..... 7

Maximum permissible electrical quantities:
• The highest voltage at the anode, V ....... 150
• The highest voltage on the second grid, V ....... 120
• The highest power dissipated at the anode, W ...... 1.2
• The maximum power dissipated on the second grid, W ... 0.35
• The highest current in the cathode circuit, mA ...... 8
• Input capacity, pF ..... 5
• Output capacity, pF ..... 3
• Throughput capacity, pF ..... 0.05

Condition.

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