5904

Medium-mu high-perveance triode designed for amplifier or oscillator service using approximately 26.5 V on both plate and heater.

Directly heatedCold cathodeCommon cathodeDissimilar

Description

Medium-mu high-perveance triode designed for amplifier or oscillator use with 26.5 volts on plate and heater.

Subminiature 8-lead

General specifications

Properties common to every published source and operating point.

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1G1	A	G1 — Control Grid EIA source transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DK
PIN3H	—	H — Heater EIA source transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DK
PIN5K	A	K — Cathode EIA source transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DK
PIN6H	—	H — Heater EIA source transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DK
PIN8P	A	P — Plate (Anode) EIA source transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DK

1 physical section, each with unique specifications.

Section 1

X-ray radiationInterelectrode capacitances

Medium-mu triode; low-voltage Class A characteristics and capacitances published.

Source-dependent data

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

Published operating points and test conditions from this source.

SECTION 1