Psvane ART Series 12AU7-S HiFi vacuum tube Electronic tube Match Pair
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Product parameters:
The medium μ dual three-pole small nine-pin tube is used for inverting drive push-pull amplification in the amplifying circuit.
Hot wire voltage
UH 6.3 (parallel) 12.6 (string) V
IH 0.30 0.15 A
Limit value for A1 zoom (each side)
Anode voltage 300 V
Anode dissipation power 2.75 W
Maximum cathode current 20 mA
Gate voltage -50 V
Voltage between hot wire cathodes (pk) ±200 V
Gate resistance
When self-biased: 1 MΩ
Fixed voltage: 0.25 MΩ
Interelectrode capacitance
No.1 No.2
Input capacitance 1.6 1.6 PF
Output capacitance 0.4 0.32 PF
Trans-circuit capacitance 1.5 1.5 PF
Electrostatic parameters
Ua 100 250 V
Ug 0 -8.5 V
Ia 11.8 10.5 mA
Gm 3.1 2.2 mA/V
μ 20 17
ri(approx) 6.5 7.7 KΩ
Ug(approx) -11.8 -10.5 V
(When Ia=10μA)
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