Tube Amp Doctor Preamp Vacuum Tube 12AX7A-C/ECC83 (Premium Selected)

Tube Amp Doctor

  • ₱1,450.00




Will be in stock after

Product Description

Vacuum Tube - 12AX7A-C / ECC83, Tube Amp Doctor, Premium Selected

9 pin miniature preamp tube (Amplification Factor =100).

Perfect V2+ Preamp Tube - Good Gain - Tight Deep Bass - Fat Mid-range!!

Very good gain, tight deep bass, fat mids and silky top end with overall definition and brightness. Selected with balanced systems and recommended for guitar amps to improve overall response.

Best for clean tones as well as for sounds requiring deep-bass power like any modern preamp. Recommended for all positions in amps with medium gain level or High-Gain Amps for V2+ positions.

The TAD 12AX7A-C can replace any 7025, 12AX7WA, 12AX7WB, 12AX7LPS, 12AX7EH, ECC83 or E83CC.

1st choice for:
Boogie®, Brunetti®, Diezel® , Engl®, Fender®, Hughes & Kettner®, Koch®, Laney®, Marshall®, Soldano®, Trace Elliot® and so many more.

Q: When does a preamp tube become a Premium Selected tube?

A: All preamp tubes labeled Premium Selected have passed the following tests:

  • Low Noise Test
  • Microphonic Test
  • Gain Test
  • Sonic Tests
  • Shock Tests
  • Listening Tests
  • Balanced Output Test


Body Height 49 mm
Bulb Temperature 160°C
Cathode Current (Ik) 8 mA
Cathode to Heater Voltage ≤ 150 V
D.C. Grid Voltage, negative -55 V
D.C. Grid Voltage, positive 0 V
D.C. Plate Voltage 330 V
Grid to Cathode Capacitance (cg/k) 1.7 pF
Grid to Heater Capacitance (cg/h) 0.2 pF
Grid to Plate Capacitance (ca/g) 1.5 pF
Heater Current 0.15 / 0.3 A
Heater Voltage 6.3 / 12.6 V
Item Diameter 22.5 mm
Item Height 56 mm
Plate Dissipation (Wa) 1.2 W
Plate to Cathode Capacitance 0.3 pF

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