Data set 01
1946 Standard Telephone and Cables
Published operating points and test conditions from this source.
SECTION 1
Triode
Capacitance
Grid-anode capacitance
17 pF
Grid-cathode capacitance
0.5 pF
Anode-cathode capacitance
39 pF
Voltage - Triode (single) ·Triode
3A102B
Standard Valves triode with published construction, electrical constants, limiting conditions, and operating information; available evidence does not support a narrower functional category.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B5
- Base pins
- 5
- Nominal heater
- 2.1 V / 1 A
Description
3A102B is a triode described in the Standard Valves datasheet. The source provides construction, electrical constants, limiting conditions, and operating information.
Socket description
European 5-pin base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B5
- Base pins
- 5
- Nominal heater voltage
- 2.1 V
- Nominal heater current
- 1 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
X-ray radiationInterelectrode capacitances
- Plate resistance
- 60000 Ω
- Transconductance
- 0.0005 S
- Amplification factor
- 30
- Max plate voltage
- 190 V
- Max cathode current
- 0.5 mA
Extracted semantically from complete approved datasheet.
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.