Telefunken KT88-TK Beam Power Tetrode Vacuum Tube, Pair
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Condition: New
Telefunken KT88-TK Beam Power Tetrode Vacuum Tube, Pair
The Telefunken KT88-TK Matched Pair delivers exceptional power, warmth, and clarity for tube amplifiers. Each tube is precisely tested and matched for optimal balance, ensuring even output and consistent sonic performance in high-fidelity and musical instrument applications.
Built as part of Telefunken’s Black Diamond Series, these KT88-TK tubes are cryogenically treated and burned in for reliability and tonal stability. They combine classic KT88 characteristics—rich harmonics, detailed highs, and tight low-end response—with modern construction for improved durability and consistency.
Ideal for both guitar amps and audiophile hi-fi systems, the KT88-TK matched pair offers the power, headroom, and precision needed to drive output stages with accuracy and smooth dynamics.
Key Features
- Matched pair of premium KT88-TK beam-power tetrode vacuum tubes
- Hand-tested, cryogenically treated, and burn-in certified
- High-power design with low distortion and extended frequency response
- Optimized for guitar amplifiers, hi-fi systems, and power amp output stages
- Rugged construction with long operating life
- Part of Telefunken’s Black Diamond Series
Technical Specifications
- Tube Type: Beam-power tetrode (KT88 family)
- Base: Octal (8-pin)
- Heater Voltage: 6.3 V
- Heater Current: 1.6 A
- Maximum Plate Voltage: 800 V
- Maximum Plate Dissipation: 42 W
- Maximum Screen Voltage: 600 V
- Maximum Screen Dissipation: 8 W
- Transconductance: ~11 mA/V
- Amplification Factor: 8
- Plate Resistance: ~15 kOhm
- Typical Operating Conditions: Plate 400 V, Screen 300 V, Control Grid -55 V
- Typical Plate Current: ~140 mA
- Output Power (Class AB1): ~50 W per pair in push-pull configuration
- Frequency Response: Extended low and high frequency range with smooth midrange
- Applications: Hi-fi power amps, bass amps, and high-output guitar amplifiers
What's in the Box
- 2x Telefunken KT88-TK Vacuum Tube
