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VHT Valvulator I Vacuum Tube Buffer / Power Supply


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The VALVULATOR I solves all three of these problems using a vacuum tube based Buffer circuit to change your guitar signal from high impedance to low impedance. You will be amazed at the renewed responsiveness of your instrument as well as the effect on your playing. In addition, the V I input stage utilizes the same circuitry as that found in the input stage of most guitar amplifiers. This means you get the same dynamic feel from your instrument as you would if you were plugged directly into your amp!

The VALVULATOR I provides four regulated and isolated outputs which will supply you with all of the clean regulated power you need to insure maximum signal output and frequency response from you pedal devices. And because the power supply outputs are individually isolated, you never have to worry about ground loop hum.


  • Input Impedance 1 megohm
  • Output Impedance 600 ohm
  • Gain Unity Gain at -20dB
  • Nominal Tube Complement 1 12AX7WB Sovtek (Russia Selected)
  • Power Supply Specifications
    • 3 X 9VDC @ 80mA per output
    • 1 X 12VDC @ 150mA Power requirement 15W, 50/60HZ
  • Actual Size: 6.75 x 3.5 x 3 (17 x 9 x 7.6)
  • Package Size: 9 x 6 x 4 (32 x 15 x 10)
  • Actual Weight: 3 (1.4)
  • Package Weight: 4 (1.8)

* Specifications subject to change without notice.

Valvulator I Owner's Manual (PDF 45 KB)