CK6111

Raytheon reliable-cathode subminiature dual triode for voltage amplification, providing two medium-mu sections for compact dependable electronic equipment.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 8CF
Socket code: SUBMINIATURE8
Base pins: 8
Nominal heater: 6.3 V / 300 mA

Description

Raytheon reliable-cathode subminiature dual triode for voltage amplification; each section is rated at the published 100 V operating point.

Socket description

Subminiature 8-lead base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 8CF
Socket code: SUBMINIATURE8
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

8CF - 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: 0.005 S
Amplification factor: 20
Max plate voltage: 100 V

Per-section values; two identical triode sections.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Transconductance: 0.005 S
Amplification factor: 20
Max plate voltage: 100 V

Second physical triode restored under current one-row-per-physical-section policy.

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

Cathode bias resistor
220 ohm
Plate current
8.5 mA

Characteristic

Transconductance
5000 uS
Amplification factor
20