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Power - TV Vertical Output ·Pentode

30P18

Output pentode designed for audio power amplification and television frame/vertical time-base output service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B9A
Base pins: 9
Nominal heater: 15 V / 300 mA

Description

Printed co-designation for the PL84 output pentode.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B9A
Base pins: 9
Nominal heater voltage: 15 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

Pentode

X-ray radiationInterelectrode capacitances

Plate resistance: 23000 Ω
Transconductance: 0.01 S
Amplification factor: 8
Max plate voltage: 250 V
Max screen voltage: 200 V
Max plate dissipation: 12 W
Max screen dissipation: 1.75 W
Max cathode current: 100 mA

Published ratings and characteristics promoted from the approved English source.

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

1973 Mazda Valves Binder 2

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

Heater voltage
15 V
Published nominal value
Heater current
300 mA
Published nominal value
Transconductance
10000 µS
Published operating characteristic

Other

Maximum plate dissipation
12 W
Published maximum rating
Maximum positive peak anode voltage
2 kV
Pulse operation
Application
Frame output stage
Printed source application