Voltage - Dual Triode (similar) ·Triode-Triode
7025EH
Modern high-gain miniature twin triode intended for low-frequency voltage amplification, providing two high-mu sections for audio preamplifier and general small-signal service.
- Sections
- 2
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 6.3 V / 343 mA
Description
High-gain miniature twin triode for low-frequency voltage amplification.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 343 mA
- 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
2 physical sections, each with unique specifications.
Section 1
Triode
- Transconductance
- 0.0014 S
- Amplification factor
- 83
- Max plate voltage
- 330 V
- Max plate dissipation
- 1.2 W
Representative section for two electrically identical triodes.
Section 2
Triode
- Transconductance
- 0.0014 S
- Amplification factor
- 83
- Max plate voltage
- 330 V
- Max plate dissipation
- 1.2 W
Second physical triode section; electrically identical twin section.
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.