EL183

High-transconductance power pentode for television video and other wideband output-amplifier stages.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B9A
Base pins: 9
Nominal heater: 6.3 V / 900 mA

Description

High-transconductance output pentode for television video and wideband power amplification.

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: 6.3 V
Nominal heater current: 900 mA
Parallel heater voltage: 6.3 V
Parallel heater current: 600 mA
Series capable: Yes

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: 20000 Ω
Transconductance: 0.025 S
Max plate voltage: 300 V
Max screen voltage: 300 V
Max plate dissipation: 10 W
Max screen dissipation: 2.2 W
Max cathode current: 100 mA

Published ratings/characteristics promoted from the approved 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

1953 La Radiotechnique

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
900 mA
Nominal
Maximum Plate Voltage
300 V
Maximum Screen Voltage
300 V
Maximum Plate Dissipation
10 W

Characteristic

Transconductance
15000 µS
Typical

Data set 02

1960 Mazda

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum heater-cathode voltage
200 V

Capacitance

Input capacitance
13 pF
Output capacitance
9.4 pF

Data set 03

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
600 mA
Nominal
Maximum Plate Voltage
250 V
Maximum Screen Voltage
250 V
Maximum Plate Dissipation
6 W
Maximum Screen Dissipation
2.2 W
Maximum Cathode Current
100 mA

Characteristic

Transconductance
15000 µS
Typical
Plate Resistance
15000 ohm
Typical