Alternatives & variations Download PDF datasheet

8120

Forced-air-cooled coaxial ceramic transmitting triode for plug-in RF amplifier, oscillator, and multiplier service. Approximately 500 W plate dissipation and useful operation to roughly 400 MHz provide substantial VHF/UHF transmitter power.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 3.4 V / 19 A

Description

Forced-air-cooled coaxial ceramic transmitting triode for plug-in RF amplifier, oscillator and multiplier 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: 3.4 V
Nominal heater current: 19 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: 70
Max plate dissipation: 500 W

Forced-air-cooled coaxial ceramic transmitting triode for plug-in RF amplifier, oscillator and multiplier 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
2500 V
RFPower
Plate current
380 mA
RFPower
Power output
620 W
RFPower
Grid voltage
-70 V
RFPower
Grid current
160 mA
RFPower
Maximum frequency
400 MHz
RFPower
Additional published output figure
50 W
Published as 620 + 50

Capacitance

Grid-to-plate capacitance
3.8 pF
Input capacitance
11 pF
Output capacitance
0.05 pF