WE15

Sensitive beam-power audio-output tube delivering approximately 4.5 W single-ended power, with 9 W plate dissipation and high transconductance for compact receiving equipment.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 900 mA

Description

The WE15 is an indirectly heated beam output pentode with 9 W maximum plate dissipation. Its high transconductance permits direct drive from detector or preceding audio stages while delivering about 4.5 W output.

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: 900 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

1 physical section, each with unique specifications.

Section 1

Beam Power

X-ray radiationInterelectrode capacitances

Plate resistance: 50000 Ω
Transconductance: 0.009 S
Max plate voltage: 250 V
Max screen voltage: 275 V
Max plate dissipation: 9 W
Max screen dissipation: 1.2 W
Max cathode current: 55 mA

Beam output pentode; screen dissipation up to 2.5 W with signal.

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 1

Beam Power

Other

Plate voltage
250 V
Screen voltage
250 V
Grid bias
-6 V
Plate current
36 mA
Screen current
4 mA
Grid signal
4.2 V rms
Output power
4.5 W
Load resistance
7000 Ohm
Maximum screen dissipation with signal
2.5 W

Capacitance

Grid-plate capacitance
<0.8 pF