5694

Premium industrial twin triode designed for dependable long-life service in amplifier and control equipment, with construction intended for applications demanding stable operation.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 8CS
Socket code: IO
Base pins: 8
Nominal heater: 6.3 V / 800 mA

Description

High-mu double triode for communications voltage amplification, Class B power amplification and low-frequency oscillation.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 8CS
Socket code: IO
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 800 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

8CS - 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: 11000 Ω
Transconductance: 0.0032 S
Amplification factor: 35
Max plate voltage: 300 V

One of two medium-mu triodes; identical-section compression applied.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 11000 Ω
Transconductance: 0.0032 S
Amplification factor: 35
Max plate voltage: 300 V

Second identical physical triode section; added to align rows with SectionCount.

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 General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Plate voltage
294 V
ClassA
Grid voltage
-6 V
ClassA
Plate current
7 mA
ClassA
Plate voltage
250 V
BothSectionsParallel
Grid voltage
-5 V
BothSectionsParallel
Plate current
6 mA
BothSectionsParallel

Characteristic

Plate resistance
11000 ohm
Transconductance
3200 uS
Amplification factor
35
Plate resistance
11300 ohm
BothSectionsParallel
Transconductance
3100 uS
BothSectionsParallel