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Power - Beam (NOT sweep) ·BeamPower

6P25

Beam-power amplifier designed for audio-frequency output service, providing a power stage for receiver and amplifier applications.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
A07
Socket code
-
Base pins
7
Nominal heater
6.3 V / 1.1 A

Description

Beam power amplifier for audio-frequency output service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
A07
Socket code
-
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
1.1 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

A07 - 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
0.009 S
Amplification factor
17.5
Max plate voltage
250 V
Max screen voltage
250 V
Max plate dissipation
10 W
Max screen dissipation
2.9 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

1960 Mazda

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Maximum Heater Cathode Voltage

    150 V

  • Typical Plate Voltage

    250 V

  • Typical Screen Voltage

    250 V

  • Grid Bias

    -8.5 V

  • QuiescentPlateCurrent

    40 mA

  • Quiescent Screen Current

    8 mA

Capacitance

  • Anode Earth Capacitance

    12 pF

  • Anode Grid Capacitance

    0.85 pF

  • Grid Earth Capacitance

    23 pF