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(88 pages)
T-KT88-EHKT88 - Electro-Harmonix
Multiple Options Available
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. Can be used in place of 6550 for a more "round" bass signature.
Starting at $32.25
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T-5751-SOVT5751 - Sovtek
Sovtek 5751 dual triode.
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T-12AY7-GT12AY7 - Groove Tubes
This tube is closest in specification to a 12AX7 and can be exchanged with a slight drop in gain. Most companies changed over to the 12AX7 as it became more common.
This tube can be tried in later Marshall amplifiers in the first gain position, where the owner of these amps would like to drop the background noise and lower the gain level to plexi or early 70s vintage gain levels with its returned wider frequency response.
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T-EL84-TADEL84 - Tube Amp Doctor
Multiple Options Available
What sets the TAD EL84 apart from other tubes is its heavy duty construction, featuring a thick glass envelope as well as premium cathode and plate materials and gold grid wire. This is a great replacement for any EL84 based amplifier.
Tube measurements are as follows:
  • Height: 2.75” (without pins)*
  • Diameter: 0.87”*

*Note: Due to the method of production in regards to the glass, measurements may vary slightly.
Starting at $17.25
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T-EL34-MULEL34 - Mullard Reissue
Multiple Options Available

Copy of the XF2 Mullard EL34 of the 60s. The perfect power tube for the Dynaco ST-70 or vintage Marshall amplifiers. the best current production EL34 available Made in Saratov, Russia

Starting at $21.00
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T-EL84-MP-PVEL84 - Peavey, Matched Pair
Peavey EL84
Matched Pair
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T-EL34B-TUNGEL34B - Tung-Sol Reissue
Multiple Options Available
Higher impedance design with increased touch responsiveness and a unique clipping characteristic with a hint of the 6L6 sound. Made in Saratov, Russia
Starting at $22.75
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T-12AT7-EH12AT7/ECC81 - Electro-Harmonix

Electro-Harmonix 12AT7 / ECC81 Vacuum Tube Large plate format, superior dissipation over the originals. Perfect for reverb and driver circuits.

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T-12AU7-CHINA12AU7 - China
9 pin miniature preamp tube (Amplification Factor = 17)
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T-EL34B-TADEL34B - Tube Amp Doctor
Multiple Options Available

Octal power tube (Max Plate Watts = 25W) Sensational new high-gain (Gm) EL34 tube with very dynamic tone. Extra strong military grade construction with gold plate grid. Perfect for High-End HiFi and best choice for all Marshall®, Hiwatt®, Orange® etc. to achieve that big tone they became famous for. Very close to the legendary UK made Mullard EL34. The TAD EL34B-STR can replace any 6CA7 or KT77.

Starting at $22.00
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(88 pages)
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