Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Power - Beam (NOT sweep) ·BeamPower

50EH5A

Beam power pentode for audio output amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
7
Nominal heater
50 V / 150 mA

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
7
Nominal heater voltage
50 V
Nominal heater current
150 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 0

Beam Power

X-ray radiationInterelectrode capacitances
Max plate voltage
150 V
Max screen voltage
130 V
Max plate dissipation
5.5 W
Max screen dissipation
2 W

Audio-output beam pentode; source provides Class A and push-pull AB1 operating conditions.

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 01

1970 Sylvania Technical Manual

Published operating points and test conditions from this source.

SECTION 0

Beam Power

Other

  • Maximum plate voltage

    150 V

    Maximum plate voltage

  • Heater/filament voltage

    50 V

    Heater voltage

  • Heater/filament current

    150 mA

    Heater current