Data set 01
1936 Cossor Valve Manual
Published operating points and test conditions from this source.
SECTION 1
Tetrode
Characteristics
Heater/filament voltage
4 V
Intended service
High-frequency amplifier
Other
Maximum anode voltage
200 V
Voltage Tetrode ·Tetrode
MSGLA
Cossor screen-grid tetrode for receiver amplification. Its screened electrode structure reduces feedback and improves high-frequency gain compared with contemporary triodes.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B5
- Base pins
- 5
- Nominal heater
- 4 V / -
Description
MSGLA: Cossor screen-grid tetrode. The complete Cossor sheet was read for construction, technical data, operating recommendations, and application notes.
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
- 4 V
- Nominal heater current
- -
- 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
- 200 V
Published ratings/characteristics promoted from the 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.
Data set 02
193X Cossor
Published operating points and test conditions from this source.
SECTION 1
Tetrode
Other
Maximum Anode Voltage
206 V
Published technical-data value