Vacuum Tube Data Sheets

12AX7 / ECC83

12ax7 schematic

 

Supply Voltage 250 350 volts
Plate Voltage 65 90 volts
Total Current 1.0 1.2 mA
Cathode Resistance 68,000 82,000 ohms
Plate Load Resistance (Rp) 0.1 0.15 megohm
Plate Load Resistance (Rp1) 0.1 0.15 megohm
Output Voltage6 (RMS) 20 35 volts
Voltage Gain 25 27
Percent Distortion 1.8 1.8 %

12ax7_5b.gif (5843 bytes)

   6 Eo at grid current starting point.

   7 The total harmonic distortion is approximately proportional to the output voltage.

Vacuum Tube Data Sheets

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