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Tube Amp Doctor - 12AX7WA Premium - Preamplifier Tube

SKU: RT006

$109.00$99.00

You Save: $10.00

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PRODUCT INFORMATION
CUSTOMER REVIEWS
PRODUCT INFORMATION

Very low noise, soft high, and edgy with dominant mids

Very low noise but slightly less gain than a regular 12AX7. Soft highs and edgy, dominant mids. Our recommendation when your amp has microphonic issues. This tube is used in many Fender amps made today. Use this tube to maintain your amp's original tone.

 

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

Matching and Selecting Options for Preamp Tubes

Matching in Pairs for preamp tubes means that two tubes show identical gain, hence, four characteristically identical systems. This matching method includes our Balance-Selection. We highly recommend this matching method for hi-fi systems.

TAD Premium Selected/Highgrade tubes are guaranteed for a period of 6 months (according to terms of warranties) for the quality criteria mentioned above.

RohS Compliant

 

Specifications

Electrical

Heater

  • Voltage (AC or DC) - 12.6V +/- 1.0 (Series), 6.3 +/- 0.5 (Parallel)
  • Current - 0.18(Series), 0.36 (Parallel)

Heating - Indirect

Cathode-to-heater potential, max - 100V

Direct interelectrode capacitances, max***

  • Grid to plate - 2.2pF
  • Grid to cathode - 2.1pF
  • Grid to heater - 1.4pF
  • Plate to cathode - 0.5pF

Mechanical

  • Operating position - Any
  • Base - E9-1, small button 9-pin
  • Dimensions - 57mm(height), 50mm(seated height), 22.6mm(diameter)
  • Cooling - Conventional
  • Approximate net weight - 14g

AF Power Amplifier

Maximum Ratings

  • DC plate voltage - 300V
  • Positive DC grid voltage - 0V
  • Negative DC grid voltage - -55V
  • DC cathode current - 10mA
  • Plate dissipation - 1.0W
  • Bulb temperature (surface hottest point) - 96 degrees celcius
CUSTOMER REVIEWS