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What's new
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View Cart
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KT88 SELECT - 02.jpg
KT88 SELECT - 01.jpg
KT88 SELECT - 03.jpg
KT88 SELECT - 04.jpg
KT88 SELECT - 05.jpg
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Ray Tubes KT88 (Select)

from £134.99

Even Better

The SELECT Collection is built as well as the CORE Collection but sounds even better. This tier far outperforms standard factory tubes.

  • Hand-selected and tested

  • Gold pins for corrosion resistance and excellent conduction

  • A substantial upgrade from standard NOS tubes

  • Low noise and microphonics

  • Fewer than 5% of the tubes commissioned for production meet our voltage, current, and sound signature standards

  • 12-month warranty against manufacturing defects

Shop Ray Tubes KT88 (Select)
Configuration:
Quantity:
Add To Cart

Even Better

The SELECT Collection is built as well as the CORE Collection but sounds even better. This tier far outperforms standard factory tubes.

  • Hand-selected and tested

  • Gold pins for corrosion resistance and excellent conduction

  • A substantial upgrade from standard NOS tubes

  • Low noise and microphonics

  • Fewer than 5% of the tubes commissioned for production meet our voltage, current, and sound signature standards

  • 12-month warranty against manufacturing defects

Shop Ray Tubes KT88 (Select)

Make Your Good Amp Great

The SELECT Collection boosts your amp noticeably. These tubes bring out better sound, even in beginner models. Each tube is handpicked by our engineers for clarity, texture, and detail. Your music will sound more real, emotional, and precise.

The SELECT Vacuum Tube Difference

The SELECT tubes come from the same batches as our CORE Collection. They stand out for one reason: expert judgment. Our engineers evaluate each tube for sound profile, dynamics, microphonics, gain, conductance, noise, and overall performance. This careful selection ensures only the best tubes make it into the SELECT Collection.

12-Month Warranty

We trust our product. We offer a 12-month warranty on our vacuum tubes. This warranty covers any manufacturing defects.

Technical Specifications

Tube Type: KT88
Tube Socket: 8-pin
Max Anode Dissipation Power: 42 W
Max Screen Dissipation Power: 8 W
Max Anode + Screen Dissipation Power: 46 W
Max Anode Voltage: 800 V
Max Screen Voltage: 600 V
Max Grid Voltage: ~200 V
Max Cathode Current: 230 mA
Heater Voltage: 6.3 V
Heater Current: 1.6 A
Transconductance: 12 mA/V
Amplification Factor: 8
Total Height: 119 mm

Tetrode Connection

Screen Voltage: 250 V
Anode Voltage: 250 V
Anode Current: 140 mA
Grid Voltage: 15 V
Grid Current: 3 mA
Internal Resistance: 12 kΩ
Amplification Factor: 8

Triode Connection

Anode Voltage: 250 V
Anode Current: 143 mA
Grid Voltage: 15 V
Internal Resistance: 670 Ω
Amplification Factor: 8

Package Contents

Set of four, two, or single vacuum tube
User handbook featuring burn-in guidelines
Certificate of authenticity and warranty

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12AX7 SELECT - 01.jpg 12AX7 SELECT - 01.jpg 12AX7 SELECT - 01.jpg 12AX7 SELECT - 01.jpg 12AX7 SELECT - 01.jpg 12AX7 SELECT - 01.jpg
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ABOUT VAL HIFI

VAL HiFi takes a curated approach to hifi retail. Our passion is for discovering, supporting and championing boutique brands that give our customers a transcendent audio experience. The very best in HiFi does not always come from the most well known brands and we believe we have the ultimate alternatives.

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Greg Chapman
Tel: 0333 577 2005
Mob: 07717477994
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