Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Tetrode
Other
Filament current
3 A
Power - Tetrode (NOT beam) ·Tetrode
3D24
High-efficiency air-cooled transmitting tetrode designed for VHF RF power service, providing substantial output at high radio frequencies.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B8G
- Base pins
- 8
- Nominal heater
- 6.3 V / 3 A
Description
High-efficiency air-cooled transmitting tetrode for VHF power service.
Socket description
Loctal 8-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B8G
- Base pins
- 8
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 3 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
Tetrode
X-ray radiationInterelectrode capacitances
- Amplification factor
- 50
- Max plate voltage
- 2000 V
- Max screen voltage
- 400 V
- Max plate dissipation
- 45 W
- Max screen dissipation
- 10 W
- Max cathode current
- 100 mA
Published source values promoted where applicable; additional values retained as parameters.
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.