5908

Sharp-cutoff pentode designed for RF, VHF/UHF, wide-band, or voltage-amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar

Description

Sharp-cutoff dual-control pentode designed to operate from a 26.5-volt heater and low-voltage supply.

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 transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DC
PIN2K	A	K — Cathode EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DC
PIN3H	—	H — Heater EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DC
PIN4G3	A	G3 — Suppressor Grid EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DC
PIN5P	A	P — Plate (Anode) EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DC
PIN6H	—	H — Heater EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DC
PIN7G2	A	G2 — Screen Grid EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DC
PIN8K	A	K — Cathode EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DC

1 physical section, each with unique specifications.

Section 1

X-ray radiationInterelectrode capacitances

Dual-control RF pentode; Class A characteristics 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