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Power - Beam Single (NOT sweep) (under 10W) ·BeamPower

32ET5A

Beam-power audio-output tube for AC/DC receivers, closely related to 32ET5 and optimized for useful loudspeaker power from low-voltage series-string equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
7-pin miniature
Socket code
B9A
Base pins
7
Nominal heater
32 V / 100 mA

Description

Beam power pentode; electrically identical to 32ET5 except heater ratings. It uses a nominal 32 V, 0.1 A heater. The supplied datasheet was used for ratings, characteristics, and typical operating data.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
7-pin miniature
Socket code
B9A
Base pins
7
Nominal heater voltage
32 V
Nominal heater current
100 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

7-pin miniature - 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
Plate resistance
21500 Ω
Transconductance
0.0055 S
Max plate voltage
150 V
Max screen voltage
130 V
Max plate dissipation
4.4 W
Max screen dissipation
1.2 W
Rectifier max heater-cathode voltage
200 V
Rectifier warm-up time
20 s

Published promoted fields populated from Maximum Ratings / Characteristics / Typical Operation headings.

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristic

  • HeaterOrFilamentVoltage

    32 V

  • HeaterOrFilamentCurrent

    100 mA

Other

  • Maximum Signal Power Output

    1.2 W

    ClassA

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Plate Voltage

    110 V

    ClassA1

  • Screen Voltage

    110 V

    ClassA1

  • Maximum Signal Power Output

    1.2 W

    ClassA1

Characteristic

  • Plate Resistance

    21500 ohm

    ClassA1

  • Transconductance

    5500 uS

    ClassA1

Data set 03

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristic

  • Plate Resistance

    21500 ohm

    Published datasheet value

  • InterelectrodeCapacitanceDataPublished

    1 boolean

    See supplied datasheet capacitance table

Other

  • MaxPlateVoltage

    150 V

    Published datasheet value

  • MaxScreenVoltage

    130 V

    Published datasheet value

  • MaxPlateDissipation

    5.4 W

    Published datasheet value

  • MaxScreenDissipation

    1.2 W

    Published datasheet value

  • Heater Voltage

    32 V

    Nominal heater rating

  • Heater Current

    100 mA

    Nominal heater rating

Data set 04

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Maximum Plate Voltage

    150 V

  • Maximum Screen Voltage

    130 V

  • Plate Dissipation

    5.4 W

  • Plate Voltage

    110 V

  • Screen Voltage

    110 V

Characteristics

  • Plate Resistance

    21500 Ω

  • Transconductance

    5500 µS