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Power - Pentode (NOT beam) ·Pentode-Triode

ECL200

Triode-pentode designed for television sync separation, amplification, and power-output service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: B9A
Base pins: 9
Nominal heater: 6.3 V / 770 mA

Description

Triode-pentode for television sync separation, amplification, and power-output service.

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: 770 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

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 18000 Ω
Transconductance: 0.0055 S
Amplification factor: 55
Max plate voltage: 300 V
Max plate dissipation: 1.5 W
Max cathode current: 20 mA

Published electrical limits and characteristics promoted from the approved source.

Section 2

Pentode

X-ray radiationInterelectrode capacitances

Plate resistance: 18000 Ω
Transconductance: 0.011 S
Max plate voltage: 250 V
Max screen voltage: 250 V
Max plate dissipation: 8 W
Max screen dissipation: 2.5 W
Max cathode current: 80 mA

Published electrical limits and 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

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
770 mA
Nominal
Maximum Plate Voltage
300 V
Maximum Plate Dissipation
1.5 W
Maximum Cathode Current
20 mA

Characteristic

Transconductance
5500 µS
Typical
Amplification Factor
55
Typical
Plate Resistance
18000 ohm
Typical

SECTION 2

Pentode

Other

HeaterVoltageNominal
6.3 V
Nominal
HeaterCurrentNominal
770 mA
Nominal
Maximum Plate Voltage
250 V
Maximum Screen Voltage
250 V
Maximum Plate Dissipation
8 W
Maximum Screen Dissipation
2.5 W
Maximum Cathode Current
80 mA

Characteristic

Transconductance
11000 µS
Typical
Plate Resistance
18000 ohm
Typical