Power - Pentode Single (NOT beam) (under 10W) ·Pentode
LS4
Transmitting pentode for RF amplification and oscillator service.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 12.6 V / 420 mA
Description
Transmitting pentode for radio-frequency amplifier and oscillator 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
- 12.6 V
- Nominal heater current
- 420 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
Pentode
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 250 V
- Max screen voltage
- 250 V
- Max plate dissipation
- 9 W
- Max screen dissipation
- 3.5 W
- Max cathode current
- 100 mA
Published ratings and 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.