Data set 01
1946 Standard Telephone and Cables
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Characteristics
Interelectrode capacitances published
1
See source table for individual capacitances
Power - Beam (NOT sweep) ·BeamPower
5B250A
Beam-power amplifier designed for both audio-frequency and radio-frequency power service, providing substantial plate dissipation for professional amplifier applications.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- MEDIUM5
- Base pins
- 5
- Nominal heater
- 6.3 V / 900 mA
Description
Beam-power amplifier for audio and radio-frequency service.
Socket description
Medium 5-contact transmitting-tube base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- MEDIUM5
- Base pins
- 5
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 900 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
Beam Power
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.006 S
- Max plate voltage
- 600 V
- Max screen voltage
- 300 V
- Max plate dissipation
- 25 W
- Max screen dissipation
- 3.5 W
- Max cathode current
- 120 mA
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
1947 Standard Valves
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Other
Maximum frequency at full rating
60 MHz
Maximum signal power output
80 W
PushPull