Data set 01
2026 Electro Harmonix
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Other
Cathode Current Maximum
90 mA
Power - Beam (NOT sweep) ·BeamPower
7868EH
Modern 7868-family beam-power tube for hi-fi audio output stages, combining compact construction with substantial current and power capability for push-pull amplifiers.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 9RW
- Socket code
- B9E
- Base pins
- 9
- Nominal heater
- 6.3 V / 800 mA
Description
Beam tetrode power tube for low-frequency power amplification.
Socket description
Novar 9-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 9RW
- Socket code
- B9E
- Base pins
- 9
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 800 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
9RW - 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
- 0.0099 S
- Max plate voltage
- 550 V
- Max screen voltage
- 440 V
- Max plate dissipation
- 19 W
- Max screen dissipation
- 3.3 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.