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

Power - Triode (over 1000V 100W) ·Triode

ZB3200

Forced-air-cooled Amperex high-power triode intended principally for broadcast service. Approximately 2.5 kW plate dissipation and 10 kV capability support several kilowatts of zero-bias RF output.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
21.5 V / 40.5 A

Description

ZB3200 is a Triode device in the supplied Amperex literature. Forced-air-cooled Amperex triode used principally in broadcasting; source states about 5.8 kW output at 10 MHz with zero-bias capability.

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
21.5 V
Nominal heater current
40.5 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

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.005 S
Amplification factor
85
Max plate voltage
10000 V
Max plate dissipation
2500 W

Published general characteristics and maximum ratings promoted.

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

1953 Amperex

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Grid-to-plate capacitance

    10 pF

    Direct interelectrode capacitance

  • Grid-to-filament capacitance

    15 pF

    Direct interelectrode capacitance

  • Plate-to-filament capacitance

    3 pF

    Direct interelectrode capacitance

  • Filament voltage

    21.5 V

  • Filament current

    40.5 A

Data set 02

1958 Amperex Industrial

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    8000 V

    RFPowerAmplifier;ClassC

  • Plate current

    960 mA

    RFPowerAmplifier;ClassC

  • Power output

    5800 W

    RFPowerAmplifier;ClassC

  • Control-grid voltage

    -400 V

    RFPowerAmplifier;ClassC

  • Grid current

    150 mA

    RFPowerAmplifier;ClassC

  • Maximum frequency at full input

    10 MHz

    RFPowerAmplifier

  • Maximum plate dissipation

    2500 W

    RFPowerAmplifier

Characteristic

  • Amplification factor

    75

    RFPowerAmplifier

Capacitance

  • Grid-to-plate capacitance

    10 pF

    Section1

  • Grid-to-filament capacitance

    13 pF

    Section1

  • Plate-to-filament capacitance

    2 pF

    Section1

Data set 03

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    8000 V

    RFAmplifierOrOscillator

  • Plate current

    960 mA

    RFAmplifierOrOscillator

  • RF output power

    5800 W

    RFAmplifierOrOscillator

  • Grid voltage

    -400 V

    RFAmplifierOrOscillator

  • Grid current

    150 mA

    RFAmplifierOrOscillator

  • Maximum frequency at full input rating

    10 MHz

Capacitance

  • Grid-to-plate capacitance

    10 pF

  • Grid-to-filament capacitance

    13 pF

  • Plate-to-filament capacitance

    2 pF