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7683

High-voltage pentode designed for wide plate-voltage swing in shunt or series high-voltage regulator circuits. Its primary function is electronic high-voltage regulation and control rather than ordinary small-signal amplification.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B9A
Base pins: 9
Nominal heater: 6.3 V / 150 mA

Description

High-voltage pentode designed for wide plate-voltage swing in shunt or series high-voltage regulator circuits.

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: 150 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: 28000 Ω
Transconductance: 0.0042 S
Max plate voltage: 1000 V
Max screen voltage: 250 V
Max plate dissipation: 15 W
Max screen dissipation: 0.7 W
Max cathode current: 20 mA

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

1950 Victoreen

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum Plate Dissipation
15 W
Maximum Plate Current
20 mA
Maximum Plate Voltage
1000 V
Maximum Heater Cathode Voltage
300 V
Maximum Screen Voltage
250 V
Maximum Screen Dissipation
0.7 W
Typical Plate Voltage
300 V
Amplifier
TypicalControlGridVoltage
-10 V
Amplifier
Typical Screen Voltage
250 V
Amplifier
Typical Plate Current
12.6 mA
Amplifier
Typical Screen Current
2.2 mA
Amplifier

Characteristic

Plate Resistance
28000 ohm
Transconductance
4200 umho