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Mullard KT88

Mullard KT88

Regular price R 1,280.00 ZAR
Regular price Sale price R 1,280.00 ZAR
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The modern-production Mullard KT88 power vacuum tube is a high-power beam tetrode manufactured in Russia (by New Sensor) designed to mimic the classic Marconi-Osram (MOV) KT88 valves from the late 1960s and 1970s. [1, 2]
Key Features & Specs
  • Tube Type: Octal-base beam power tetrode (can directly replace any 6550 or KT88 tube). [1, 2]
  • Application: Ideal for high-fidelity (Hi-Fi) stereo audio amplifiers as well as vintage guitar amps like the Marshall Major. [1, 2]
  • Design Elements: Features triple getters, additional support posts, and cooling fins along the anode. [1]
  • Sound Profile: Known for a balanced, detailed soundstage, extended top end, punchy/tight bass, and rich mids. [1, 2]
  • Electrical Ratings:
    • Maximum Plate Dissipation: ~44 W
    • Maximum Anode/Plate Voltage: Up to 800 V (depending on configuration)
    • Filament/Heater Voltage: 6.3 V nominal (range ~5.7 V – 6.9 V), 1.5 A – 1.7 A [1, 2]
Pricing & Availability
  • Single Tubes: Typically cost around $70 to $75 USD. [1, 2]
  • Matched Pairs: Generally range from $138 to $160+ USD. [1, 2]
  • Matched Quads / Octets: Quads range around $277 to $330 USD, and larger matched groupings (sextets/octets) scale higher depending on the supplier and burn-in/testing services (such as platinum matching). [1]

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Mullard KT88
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