Data set 01
1963 Hitachi
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Interelectrode capacitances published
1
See source table
Characteristic
Heater Warm-up Time
11 s
Voltage - Dual Triode (similar high frequency) ·Triode-Triode
4RHH2
Twin triode designed for cascode RF amplification in VHF television tuners, providing the paired high-frequency triode sections required by the tuner front end.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- E9-1
- Socket code
- -
- Base pins
- 9
- Nominal heater
- 4.2 V / 600 mA
Description
Twin triode for cascode RF amplification in VHF television tuners.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- E9-1
- Socket code
- -
- Base pins
- 9
- Nominal heater voltage
- 4.2 V
- Nominal heater current
- 600 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
E9-1 - 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
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.008 S
- Amplification factor
- 36
- Max plate voltage
- 150 V
- Max plate dissipation
- 2 W
- Max cathode current
- 20 mA
Repeated identical physical sections represented by one populated row.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.008 S
- Amplification factor
- 36
- Max plate voltage
- 150 V
- Max plate dissipation
- 2 W
- Max cathode current
- 20 mA
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.