Valves / Tubes

Evatco stocks one of Australia's largest ranges of valves (vacuum tubes) for guitar amps, bass amps and hi-fi, from JJ Electronics, Tung-Sol, Electro-Harmonix, Genalex Gold Lion, Mullard, Sovtek and Svetlana. Find preamp tubes such as the 12AX7 / ECC83, power tubes including EL34, EL84, 6L6, 6V6 and KT88 in matched pairs and quads, rectifier tubes, plus the sockets, retainers, rings and anode caps to fit them. Australian owned, with same-day shipping on orders placed before 1:00pm on weekdays.

Which valves does my amp need?

  • Preamp tubes (small 9-pin valves such as the 12AX7, 12AT7 and 12AU7) shape your amp's gain and tone. They're the easiest place to start when retubing. Try our V1 Tube Simulator to hear the difference.
  • Power tubes (EL34, EL84, 6L6, 6V6, KT88 and more) drive the speaker and set your amp's headroom and feel. Replace them as a matched pair or quad, and check the bias afterwards.
  • Rectifier tubes (5AR4 / GZ34, 5U4GB, 5Y3) convert AC to DC in valve-rectified amps and affect how much the amp sags when you play hard.
  • Sockets, retainers, rings, anode caps and boxes are the hardware for amp builds, repairs and safe storage of spare valves.
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