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
VLS407
Triode for general electronic service. Available source material does not establish a narrower functional application confidently.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- 5
- Nominal heater
- 2.1 V / 1 A
Description
VLS407 is a triode described in the Standard Valves datasheet. The source provides construction, electrical constants, limiting conditions, and operating information.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- 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
Explicit alias/co-designation; values duplicated from the same approved 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.