30P4

Beam-power tube designed specifically for magnetic television line-scan output stages, using a 300 mA series heater and providing the pulse current needed by horizontal-output transformers.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: IO
Base pins: -
Nominal heater: 25 V / 300 mA

Description

Television beam-power amplifier for magnetic line-scan output stages.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: IO
Base pins: -
Nominal heater voltage: 25 V
Nominal heater current: 300 mA
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

Beam Power

X-ray radiationInterelectrode capacitances

Max plate voltage: 400 V
Max screen voltage: 250 V
Max plate dissipation: 10 W
Max screen dissipation: 4 W
Max cathode current: 160 mA

Television line-output beam-power section; peak pulse ratings preserved 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

1960 Mazda

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

MaximumPositivePeakAnodeVoltage
6000 V
LineScanPulse
AbsoluteMaximumPositivePeakAnodeVoltage
7500 V
LineScanPulse
MaximumNegativePeakScreenVoltage
2000 V
Pulse

Characteristics

Grid Earth Capacitance
20 pF

Data set 02

1973 Mazda Valves Binder 2

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Application

Application
TVLineOutput text