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Tungsol KT120
Tungsol KT120
Regular price
R 1,300.00 ZAR
Regular price
Sale price
R 1,300.00 ZAR
Shipping calculated at checkout.
50 in stock
The Tung-Sol KT120 is a high-power beam tetrode vacuum tube featuring a 60-watt plate dissipation rating, making it the most powerful output tube in the 6550 / KT88 / KT90 / KT100 family. [1]
Key Specifications & Features
- Tube Type: Beam tetrode power amplifier [1]
- Plate Dissipation: 60 Watts (compared to 35W for 6550 and 42W for KT88) [1]
- Power Output: A push-pull pair can deliver 150 to 200 watts or more of audio power. [1, 2]
- Heater / Filament Requirements: 6.3V at 1.7A – 1.95A (draws roughly 15% to 300mA more filament current than standard KT88/6550 tubes). [1, 2, 3]
- Physical Dimensions: Height is approximately 4.5 inches (113 mm) and width is 2 inches (52 mm)—roughly 0.5 inches taller than a standard KT88. [1, 2]
- Sound Profile: Known for deep, dynamic bass punch, extended headroom, clear midrange, and an open top-end. [1, 2, 3]
Compatibility & Usage Considerations
- Amplifier Design: While often marketed as a potential upgrade or drop-in substitute for KT88 or 6550 circuits, its higher filament current draw means you must verify that your amplifier's power transformer and heater supply have adequate headroom. [1, 2, 3]
- Physical Clearance: The taller glass envelope requires checking chassis and cabinet clearance. [1]
- Not for Guitar Combos: Due to its large glass envelope and higher sensitivity to microphonics, it is generally recommended for high-end hi-fi stereo amplifiers or dedicated head/cabinet setups rather than high-vibration guitar or bass combo amps. [1]
Product features
Product features
Materials and care
Materials and care
Merchandising tips
Merchandising tips
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