PSVANE ART TII Series 12AT7-S Vacuum Tube Amplifier Tubes Matched Pair (2 PACK)

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Heater Voltage

  • UH: 6.3 V (parallel), 12.6 V (series)
  • IH: 0.30 A (parallel), 0.15 A (series)

Maximum Ratings in Class A1 Amplification (per side)

  • Anode Voltage: 300 V
  • Grid Voltage: -50 V
  • Anode Dissipation Power: 2.5 W
  • Heater-to-Cathode Voltage (pk): ±90 V

Grid Resistance

  • Self-Bias: 1 MΩ
  • Fixed Bias: 0.25 MΩ

Interelectrode Capacitance

Parameter No. 1 (pF) No. 2 (pF)
Input Capacitance 2.2 2.2
Output Capacitance 0.45 0.35
Cross Capacitance 1.6 1.6

Static Parameters

Parameter Ua (V) Ia (mA) Gm (mA/V) Rk (Ω) μ r_i (kΩ)
Operating Point 1 100 3.7 4.0 270 60 15.0
Operating Point 2 250 10.0 5.5 200 60 10.9