Detail 01
50W output power, push-pull Class AB1
The stated output rating applies in a push-pull Class AB1 configuration.
Product detailSKU #1500000448977
TELEFUNKENKT88-TK Power Tubes Quad
1/2
Independent shopping perspective
The Korena take
The KT88-TK quad is a set of beam-power tetrodes for guitar and hi-fi amplifier applications. Made with JJ Electronic in Slovakia, these Black Diamond Series tubes are described with high output, low distortion, harmonic richness, and a balanced tonal response. The voice is characterized by a firm low end and smooth midrange, with enough power for clean passages as well as overdriven amplifier sounds. Each tube uses an octal eight-pin base.
Strong match
Who this is for
- Guitar or hi-fi amplifier applications calling for KT88 beam-power tetrodes.
- Amplifier setups using push-pull Class AB1 operation, where the listed output figure is 50W.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Octal (8-pin) base
Uses the eight-pin octal tube base format.
Detail 03
Maximum plate voltage: 800V
The tube's maximum listed plate-voltage rating is 800V.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How many tubes are in this set?
This SKU is a quad, containing four KT88-TK power tubes.
02What amplifiers are these tubes used in?
They are listed for guitar amplifiers and hi-fi amplifiers.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsPickups & controls
- Control Grid Voltage
- -55V
- Pickup Configuration
- SS
1 detailsBody & build
- Type
- Beam-power tetrode
6 detailsConnections & power
- Plate Voltage
- 400V
- Maximum Plate Voltage
- 800V
- Heater Voltage
- 6.3V
- Screen Voltage
- 300V
- Maximum Screen Voltage
- 600V
- Output Power
- 50W (push-pull Class AB1)
1 detailsSize & weight
- Dimensions
- Approximately 4.9 inch in height and 2.1 inch in diameter
10 detailsOther
- Maximum Screen Dissipation
- 8W
- Amplification Factor
- 8
- Plate Resistance
- 15 kohm
- Maximum Plate Dissipation
- 42W
- Screen Current
- 12 mA
- Transconductance
- 11 mA/V
- Heater Current
- 1.6A
- Plate Current
- 140 mA
- Base
- Octal (8-pin)
- Applications
- Guitar and Hi-Fi amplifiers
