Data set 01
1956 Western Electric Tubes
Published operating points and test conditions from this source.
SECTION 1
Tetrode
Characteristic
HeaterOrFilamentVoltage
10 V
HeaterOrFilamentCurrent
3.1 A
Other
Typical Power Output
30 W
ClassB;RF
Power - Tetrode (NOT beam) ·Tetrode
305A
Air-cooled transmitting tetrode designed for Class-B RF service. Its power construction supports professional radio-frequency amplification rather than receiving-type operation.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 10 V / 3.1 A
Description
Air-cooled transmitting tetrode for Class B RF service.
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
- 3.1 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
Tetrode
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 1000 V
- Max plate dissipation
- 60 W
Ratings and characteristics promoted from the supplied Western Electric tabular source.
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.