3200A3

Eimac medium-mu transmitting power triode for RF amplification, oscillation, and modulation. Rated around 3.5 kV and 200 W plate dissipation, its low capacitances support useful transmitter operation to roughly 150 MHz.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 10 V / 5 A

Description

EIMAC 3200A3 is an explicit alternate/equivalent designation printed on the 592 source sheet. Medium-mu power triode for RF power amplifier, oscillator, and modulator service.

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: 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

Amplification factor: 25
Max plate voltage: 3500 V
Max plate dissipation: 200 W
Max grid dissipation: 25 W
Max cathode current: 250 mA

Applicable promoted ratings populated from the printed maximum-ratings/general-characteristics tables; remaining operating data retained densely as parameters.

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

1975 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Grid-Plate Capacitance
3.3 pF
Grid-Filament Capacitance
3.6 pF
Plate-Filament Capacitance
0.29 pF
Transconductance
0.0036 A/V
Frequency Maximum
150 MHz
AF Plate Voltage Maximum
3500 V
AF Max-Signal Plate Current
250 mA
Plate-Modulated RF Plate Voltage Maximum
2600 V
RF Plate Voltage Maximum
3500 V
RF Plate Current Maximum
250 mA
Typical RF Plate Output
600 W

Data set 02

1976 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Grid-Plate Capacitance
3.3 pF
Grid-Filament Capacitance
3.6 pF
Plate-Filament Capacitance
0.29 pF
Transconductance
0.0036 A/V
Frequency Maximum
150 MHz
AF Plate Voltage Maximum
3500 V
AF Max-Signal Plate Current
250 mA
Plate-Modulated RF Plate Voltage Maximum
2600 V
RF Plate Voltage Maximum
3500 V
RF Plate Current Maximum
250 mA
Typical RF Plate Output
600 W