Tube Amp Doctor (TAD) KT88-STR Power Tube
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Tube Amp Doctor (TAD) KT88-STR Power Tube

Brand: Tube Amp Doctor
Product Code: Varies (Please Select an Option)
Warranty: 6 Months
Ships Wed 08/01/2025 - Fri 10/01/2025
Premium Matching: *

$149.00 - $1,192.00
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TAD KT88-STR

Our Favourite Tube in the KT88 / 6550 Class

The latest version of our TAD KT88-STR is built in the style of the early British MOV KT88. It has the same big and heavy glass envelope and beautifully polished metal base. Its wonderful tone and great appearance make this tube the most attractive choice for high-end audio applications and powerful bass guitar amps.

It offers a vivid and three-dimensional tone, pleasingly warm, detailed and with subtle highs. A very musical reaction, with great sound and finest details in mids and top-end; a linear and harmonious overall response with a very natural tone, make the TAD KT88-STR our favourite tube in the KT88 and 6550A class.

TAD Premium Selection

Q: When does a power tube become a Premium Selected power tube?

A: All power tubes labelled Premium Selected have passed the following tests:

  • Plate Current (PC) and Amplification (TC)
  • Low Noise Test
  • Microphonic Test
  • Sonic Test
  • Shock Test
  • Listening Test
  • Shorts & Leakage Test

Premium RT-Matching of Power Tubes

Our Premium Matching is an exact matching of power tubes with identical Plate Current (PC) and Transconductance (TC).

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