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10pcs 6F4P (6DX8 6DQ8 ECL84) Triode Pentode tubes NOS
10pcs 6F4P (6DX8 6DQ8 ECL84) Triode Pentode tubes NOS
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€11,67 EUR
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10pcs lot.
6F4P = (6DX8 6DQ8 ECL84) Triode Pentode tubes NOS
Triode-pentode.
Designed for operation in output stages of video amplifiers and low frequency amplifiers (pentode part), in AGC circuits and in low frequency preamplifiers of TV and radio receivers (triode part).
Durability not less than 5000 h.
Weight not more than 20 g.
Main technical characteristics of 6F4P:
Pump voltage...... 6,3 ± 0,6В
Pump current...... 720 ± 60 mA
Triode part:
Anode voltage nominal (DC)...... 200 В
Anode voltage limiting (constant)...... 250 В
Anode current...... 3 ± 0.9 mA
Cathode current limit...... 12 mA
Power dissipated by anode, limiting...... 1 W
Steepness of characteristic...... 4 ± 1 mA/V
Gain...... 65
Resistance in the cathode circuit for automatic bias...... 600 ohms
Resistance in the grid circuit limiting...... 1 megohm
Input capacitance...... 4 pF
Output capacitance...... 0,6 pF
Passing capacitance...... 2,7 pF
Pentode part:
Anode voltage nominal (constant)...... 170 В
Anode voltage limiting (constant)...... 250 В
Anode current...... 18 ± 6 mA
Cathode current limit...... 40 mA
Second grid voltage nominal (constant)...... 170 В
Second grid voltage nominal (constant)...... 250 В
Second grid current...... not more than 7 mA
Power dissipated by anode, limiting...... 4 W
Power dissipated by the second grid, limiting...... 1,7 W
Steepness of characteristic...... 11 ± 9.5 mA/V
Internal resistance...... 100 kOhm
Resistance in the cathode circuit for automatism
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