RE125AB

Directly heated 125-watt beam tetrode electrically matching RE125A construction, intended for audio and RF power or oscillator service with differing operating points.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: 5
Nominal heater: 5 V / 6.6 A

Description

RE125AB is stated on the RE125A sheet to have the same construction and electrical design as RE125A, differing in operating-point values; it is a directly heated 125 W beam tetrode.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: 5
Nominal heater voltage: 5 V
Nominal heater current: 6.6 A
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

Max plate voltage: 3000 V
Max screen voltage: 600 V
Max plate dissipation: 125 W
Max screen dissipation: 20 W

Power transmitting section. Values promoted from the supplied source; threshold/range qualifiers are retained in parameter rows where applicable.

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 Tesla

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Capacitance

Control-grid input capacitance
12 pF
Published interelectrode capacitance
Plate output capacitance
3.7 pF
Published interelectrode capacitance
Plate-to-control-grid capacitance maximum
0.1 pF
Published interelectrode capacitance

Other

Maximum frequency
100 MHz
Published maximum/rated frequency