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$62 to $136
The KT88 vacuum tube is considered to be one of the best sounding power tubes for hifi tube amplifiers. In general, the KT88 tube has a magical mid-range ...
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TubeDepot carries a selection of 6550 / KT88 / KT90 Power Vacuum Tubes. New & NOS power tubes from Mullard, Tung-Sol, Telefunken, Sino, GE, ...
KT88
The KT88 is a beam tetrode/kinkless tetrode vacuum tube for audio amplification. Wikipedia
Heater current: 1.6 A
Heater voltage: 6.3
Max dissipation Watts: 42 W
Max voltage: 800
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Electro-Harmonix KT88 Vacuum Tube High power kinkless-tetrode for use in amplifiers such as the Marshall Major. This tube is a favorite of audiophiles.
$110.00 to $450.00
The TELEFUNKEN Elektroakustik KT88-TK is a newly manufactured and cryogenically treated version of the legendary KT88. The KT88-TK is a beam-power tetrode ...
$44 to $1,189
The KT90, KT120 and KT150 are all tubes that were designed in the modern era. They are all loosely based on the KT88 but with much more power.