1J 17B - subminiature high-frequency pentode. Designed to amplify high frequency voltage up to 60 MHz in battery powered equipment. Can be used as an intermediate frequency amplifier, local oscillator or low frequency preamplifier. 1J 17B - a radio tube of a rod design, has a directly heated cathode.

A    Anode (top terminal)

1 Cathode-heat (+)

2 Cathode-heat (-)

3 Screen

4 Third grid

5 Second grid

6 First grid

Parameters 1J 17B

(nominal mode)

Filament voltage 1.2V

Anode voltage 60V

Second grid voltage 40V

Bias voltage on the first grid 0V

Filament current 48±6mA

Anode current 2.15±0.65mA

Second grid current <0.3mA

Steepness 1.5±0.5mA/V

Steepness at Un=0.95V >0.85mA/V

Reverse current of the first grid <0.5 µA

Equivalent resistance of intra-lamp noise (f=30MHz) <7Kohm

Input impedance (f=60MHz) >80Kom

Input capacitance 3.25±0.9pF

Output capacitance 2.4±0.4pF

Pass-through capacitance <0.01pF

Anode-cathode capacitance <0.025pF

Ready time <1s

Operating hours >3000h

Condition.

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