WE19

Double-diode variable-mu pentode combining IF amplification, detection, and automatic gain control, with a remote-cutoff pentode and two physical detector-diode sections.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 3
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 200 mA

Description

The WE19 combines a variable-mu IF pentode with two detector diodes for amplification, detection, and AGC.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: 6.3 V
Nominal heater current: 200 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

3 physical sections, each with unique specifications.

Section 1

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Representative detector diode section.

Section 2

Pentode

X-ray radiationInterelectrode capacitances

Plate resistance: 1500000 Ω
Transconductance: 0.0018 S
Max plate voltage: 250 V
Max screen voltage: 100 V

Variable-mu IF pentode.

Section 3

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Physical second diode section added during approved section-structure reconciliation.

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

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 2

Pentode

Characteristics

Plate Voltage
250 V
Screen Voltage
100 V
Plate Current
5 mA
Screen Current
1.8 mA
Transconductance
1800 uS
Control Range
100 ratio