21JS6A

Beam-power pentode designed for television horizontal-deflection amplifier service, electrically identical to the 6JS6A apart from heater characteristics.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B12C
Base pins: 12
Nominal heater: 21 V / 600 mA

Description

The 21JS6A is a beam-power pentode for television horizontal-deflection service; its supplied registration sheet states that its non-heater electrical characteristics are identical to 6JS6A.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B12C
Base pins: 12
Nominal heater voltage: 21 V
Nominal heater current: 600 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

No fixed ratings are recorded for this section.

Horizontal-deflection beam-power section; supplied sheet defers non-heater electrical data to 6JS6A.

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

1964 RMA EIA

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristics

Heater Voltage
21 V
Heater Current
600 mA
Heater Warm-up Time
11 s
Electrical Characteristics Reference
6JS6A text
SuppliedSheetStatesIdenticalExceptHeaterCharacteristics