Vacuum Tubes

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  • Tubes – Sovtek 5881/6L6WGC Power Tube (single)


    Sovtek 5881/6L6WGC Power Tube (single)

    The 5881 is a very reliable tube that is widely used in many current production tube amplifiers. It has a warm tone with good ‘bite.’ This modern version is able to tolerate higher voltages than its 5881 / 6L6 cousins. The Sovtek 5881 delivers a warm, round tone that “sweetens” any vintage or modern guitar amp design. Built to rigid military standards, the 5881 will tolerate higher voltages than any other 6L6. In fact, they’re frequently used as replacements for the old 7027 model in vintage Ampegs. Extremely consistent from piece to piece. The Sovtek 5881 has a heater voltage of 6.3 volts at 0.88 amperes. Maximum plate voltage is 250 volts while maximum plate current is 73 mA. The 5881 has a Transconductance rating of 6000 micromhos and a maximum output power of 5.8 watts.




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    Tubes – AllParts 6550 – VT655


    AllParts brand NOS tube stock

    One pair, new, unopened

  • Tubes – Groove Tubes GT-6CA4 Rectifier Tube – green


    NOS tube stock

    The lowest-output rectifier tube in the GT line; commonly used during the ’60s in student and practice amplifiers.

  • Tubes – Groove Tubes GT-5U4 – yellow


    NOS tube stock

    Medium-output rectifier tube originally used in early medium-power Fender® amps with tube rectifiers.

  • Tubes – JJ 12AX7 ECC83 Preamp Tube

    JJ 12AX7 ECC83 pre-amp tubes

    The JJ Electronic 12AX7 / ECC83 has quickly become a modern classic in preamp tubes. Its rugged design and rich harmonics make this tube an obvious choice for musicians who need a reliable and high quality tube at a reasonable price. The balanced tone of the JJ 12AX7 works well in any amp. This versatile tube sounds excellent in clean amps offering an amazing dynamic response while also proving itself in high gain amps with its low noise and noticeably less microphonic issues than other tubes. The warm highs and transparent lows make it a great choice for any position in a tube amp. The JJ 12AX7 is the go-to tube of many amp builders and touring musicians.