Data set 01
2026 Electro Harmonix
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Other
Cathode Current Maximum
230 mA
Triode connection
Power Output
14 W
Plate 400 V; Screen 225 V
Power - Beam (NOT sweep) ·BeamPower
KT88GENALEX
Premium modern KT88 beam tetrode for high-fidelity audio power amplification, intended for demanding single-ended and push-pull output stages requiring substantial plate dissipation and current capability.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- IO
- Base pins
- 8
- Nominal heater
- 6.3 V / 1.6 A
Description
Genalex-branded KT88 beam tetrode for low-frequency power amplification in HI-FI audio output stages.
Socket description
International Octal
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- IO
- Base pins
- 8
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 1.6 A
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
1 physical section, each with unique specifications.
Section 1
Beam Power
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.0082 S
- Max plate voltage
- 800 V
- Max screen voltage
- 600 V
- Max plate dissipation
- 44 W
- Max screen dissipation
- 6.6 W
Published ratings and characteristics promoted from the approved source.
Source-dependent data
Operating conditions by source
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.