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Power - Pentode Single (NOT beam) (under 10W) ·Pentode

6526

Directly heated subminiature power pentode designed for portable, wearable, or low-battery-drain output-amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
9
Nominal heater
1.25 V / 125 mA

Description

Directly heated subminiature pentode power amplifier for intermittent-duty or push-to-talk Class A portable equipment.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
9
Nominal heater voltage
1.25 V
Nominal heater current
125 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
Plate resistance
140000 Ω
Transconductance
0.0019 S
Max plate voltage
135 V
Max screen voltage
135 V
Max plate dissipation
1.1 W
Max screen dissipation
0.4 W
Max cathode current
12 mA

Published ratings and characteristics promoted where clearly stated; identical repeated sections compressed where applicable.

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

1938 Raytheon

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Heater or filament voltage

    1.25 V

    Published nominal or representative value

  • Heater or filament current

    125 mA

    Published nominal or representative value

  • Transconductance

    1900 µS

    Published operating characteristic

Other

  • Maximum plate dissipation

    1.1 W

    Published maximum rating