6550 / KT88 Beam Pwr Tetrode

6550 / KT88 Beam Pwr Tetrode

The 6550 is an 8-pin "octal" beam power tetrode tube found in the power amp section of mainly tube bass guitar amps, mostly in sets of two or four matched valves.  It has a 6.3v heater filament and can dissipate 42W. The KT88 is a similar substitute beam power tetrode tube. They can be substituted with appropriate bias adjustment. 6550 / KT88 tubes typically handle higher plate voltages than other tubes, and as such offer higher headroom with lower distortion, making them popular in tube bass guitar and hi fi amplifiers. 

  • 6550WE - Sovtek

    The Sovtek 6550WE was designed to be the finest 6550 ever produced. Ideal for bass, guitar and hi-fi tube amplifiers

    R790.00

    R790.00

  • 6550 - JJ Electronic

    The JJ 6550 beam power tetrode tube is a high quality option for bass, guitar and hi-fi tube amplifiers

    R711.00

    R711.00

  • KT88 - JJ Electronic

    The JJ KT88 beam power tetrode tube is a high quality option for bass, guitar and hi-fi tube amplifiers. A good substitute for the 6550 tube

    R985.00

    R985.00

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© November 2016 - Tone Tubes.

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© November 2016 - Tone Tubes.

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