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8078

High-power triode designed for pulse-modulator service, with manufacturer ratings centered on short-duration high-voltage, high-current pulses rather than continuous RF or audio operation. Its intended role is switching or modulating pulsed power in professional equipment.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 5 V / 32.5 A

Description

Radiation-cooled transmitting triode for industrial RF oscillator and amplifier 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: 5 V
Nominal heater current: 32.5 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: 21
Max plate dissipation: 500 W

Radiation-cooled transmitting triode for industrial RF oscillator and amplifier service.

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

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate voltage
6000 V
RFPower
Plate current
700 mA
RFPower
Power output
3200 W
RFPower
Grid voltage
-1250 V
RFPower
Grid current
170 mA
RFPower
Maximum frequency
50 MHz
RFPower

Capacitance

Grid-to-plate capacitance
51 pF
Input capacitance
9.2 pF
Output capacitance
0.2 pF