CK5608

Indirectly heated double triode designed for control-equipment service, with two similar medium-mu sections operated at the published 300-volt plate condition.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 7J
Socket code: -
Base pins: -
Nominal heater: 2.5 V / 2 A

Description

Indirectly heated double triode for control-equipment service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 7J
Socket code: -
Base pins: -
Nominal heater voltage: 2.5 V
Nominal heater current: 2 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

7J - 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

Transconductance: 0.00245 S
Amplification factor: 32

Two electrically identical triode sections represented once under repeated-section compression. Published plate/grid values are typical operating conditions.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Transconductance: 0.00245 S
Amplification factor: 32

Second physical triode section; electrically identical twin section.

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

195X Raytheon Special Purpose Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate voltage
300 V
Grid 1 voltage
-6 V
Plate current
6 mA

Characteristic

Amplification factor
32
Transconductance
2450 uS