Power - Triode ·Triode
203H
Directly heated power triode for RF and audio amplification, oscillator, and modulator service. Amperex rates it for substantial transmitting duty, with 100 W plate dissipation and plate voltage up to 1.5 kV.
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 10 V / 3.25 A
Description
RF/AF power amplifier, oscillator and modulator triode. The datasheet publishes maximum ratings, typical operating conditions and electrical characteristics.
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
- 10 V
- Nominal heater current
- 3.25 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
Triode
- Plate resistance
- 5560 Ω
- Transconductance
- 0.0045 S
- Amplification factor
- 25
- Max plate voltage
- 1500 V
- Max plate dissipation
- 100 W
Published maximum ratings and general characteristics promoted; direct interelectrode capacitances are published.
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.