Data set 01
1940 RCA
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Maximum Frequency
600 MHz
Application
Application
Radiosonde_UHF text
Voltage - Triode (single high frequency) ·Triode
5731
Acorn UHF triode for operation to approximately 600 MHz, particularly suited to radiosonde transmitter and high-frequency electronic applications.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 5BC
- Socket code
- -
- Base pins
- 5
- Nominal heater
- 6.3 V / 150 mA
Description
Acorn UHF triode for operation to about 600 MHz, particularly radiosonde applications.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 5BC
- Socket code
- -
- Base pins
- 5
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 150 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
5BC - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN1H | — | H — Heater EIA chart transcription; manufacturer corroboration pending | Unverified EIA Base Connections, printed page 127, 5BC |
| PIN2P | A | P — Plate (Anode) EIA chart transcription; manufacturer corroboration pending | Unverified EIA Base Connections, printed page 127, 5BC |
| PIN3G1 | A | G1 — Control Grid EIA chart transcription; manufacturer corroboration pending | Unverified EIA Base Connections, printed page 127, 5BC |
| PIN4H | — | H — Heater EIA chart transcription; manufacturer corroboration pending | Unverified EIA Base Connections, printed page 127, 5BC |
| PIN5K | A | K — Cathode EIA chart transcription; manufacturer corroboration pending | Unverified EIA Base Connections, printed page 127, 5BC |
Section ratings
1 physical section, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 11400 Ω
- Transconductance
- 0.0022 S
- Amplification factor
- 25
- Max plate voltage
- 250 V
Acorn power-amplifier triode.
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.
Data set 02
195X General Electric Essential Characteristics
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Input capacitance
1 pF
Output capacitance
0.4 pF
Grid-to-plate capacitance
1.3 pF
Other
Plate voltage
250 V
ClassA
Grid voltage
-7 V
ClassA
Plate current
6.3 mA
ClassA
Characteristic
Plate resistance
11400 ohm
Transconductance
2200 uS
Amplification factor
25