Data set 01
1936 Cossor Valve Manual
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Heater/filament voltage
16 V
Heater/filament current
250 mA
Mutual conductance
6000 uS
Voltage - Triode (single) ·Triode
DP
Cossor triode valve for receiving and amplifier service; available source material does not establish a narrower functional application confidently.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- B4
- Base pins
- -
- Nominal heater
- 16 V / 250 mA
Description
DP: Cossor triode valve. The complete Cossor sheet was read for construction, technical data, operating recommendations, and application notes.
Socket description
European 4-pin base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B4
- Base pins
- -
- Nominal heater voltage
- 16 V
- Nominal heater current
- 250 mA
- 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
- Transconductance
- 0.006 S
- Amplification factor
- 17
- 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
Triode
Other
Filament/Heater Current
25 A
Published technical-data value
Maximum Anode Voltage
200 V
Published technical-data value
Characteristics
Mutual Conductance
6000 µS
Published technical-data value
Amplification Factor
17
Published technical-data value