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Power - Pentode (NOT beam) (over 1000V 100W) ·Pentode

5D100A

Power pentode designed for radio-frequency transmitting, Class-C power amplification, oscillation, or frequency-multiplier service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
10 V / 16 A

Description

Rf Power Pentode.

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
10 V
Nominal heater current
16 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

Pentode

X-ray radiationInterelectrode capacitances
Transconductance
0.0045 S
Max plate voltage
3000 V
Max screen voltage
850 V
Max plate dissipation
1000 W
Max screen dissipation
250 W

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

1937 Standard Valves

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Total emission

    6 A

  • Grid-anode capacitance

    0.1 pF

  • Input capacitance

    42 pF

  • Output capacitance

    328 pF

Other

  • Maximum frequency for full ratings

    10 MHz

  • Anode voltage at 20 MHz

    2500 V

    20MHz

  • Typical output power

    1300 W

    ClassC;Unmodulated

Data set 02

1946 Standard Telephone and Cables

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Interelectrode capacitances published

    1

    See source table for individual capacitances