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Rectifier - Full Wave ·Rectifier-Rectifier

25Z6G

Indirectly heated full-wave rectifier and voltage-doubler tube for AC/DC receiver supplies. Its twin rectifier sections support flexible full-wave, half-wave, and voltage-doubler arrangements with substantial receiver-power output.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: IO
Base pins: -
Nominal heater: 25 V / 300 mA

Description

Full-wave rectifier and voltage-doubler tube.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: IO
Base pins: -
Nominal heater voltage: 25 V
Nominal heater current: 300 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

2 physical sections, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier nominal output current: 85 mA
Rectifier peak forward current: 500 mA
Rectifier max heater-cathode voltage: 350 V

Published ratings, characteristics, operating conditions and capacitances reviewed.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier nominal output current: 85 mA
Rectifier peak forward current: 500 mA
Rectifier max heater-cathode voltage: 350 V

Second physical rectifier section; electrical properties populated from corresponding identical section.

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

1937 Raytheon Radio Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

Heater/filament voltage
25 V
Published heater/filament rating
Heater/filament current
300 mA
Published heater/filament rating

Other

Voltage-doubler RMS voltage per plate
125 V
VoltageDoubler
Voltage-doubler peak plate current
500 mA
VoltageDoubler
Voltage-doubler DC output current
85 mA
VoltageDoubler
Half-wave RMS voltage per plate without series resistor
125 V
HalfWave
Half-wave RMS voltage per plate with series resistor
250 V
HalfWave
Half-wave peak current per plate
500 mA
HalfWave
Half-wave DC output current per plate
85 mA
HalfWave

SECTION 2

Rectifier

Characteristic

Heater/filament voltage
25 V
Published heater/filament rating
Heater/filament current
300 mA
Published heater/filament rating

Other

Voltage-doubler RMS voltage per plate
125 V
VoltageDoubler
Voltage-doubler peak plate current
500 mA
VoltageDoubler
Voltage-doubler DC output current
85 mA
VoltageDoubler
Half-wave RMS voltage per plate without series resistor
125 V
HalfWave
Half-wave RMS voltage per plate with series resistor
250 V
HalfWave
Half-wave peak current per plate
500 mA
HalfWave
Half-wave DC output current per plate
85 mA
HalfWave

Data set 02

1948 Brimar Radio Valve Manual

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

HeaterOrFilamentVoltage
25 V
HeaterOrFilamentCurrent
300 mA

Other

RMSInputPerAnode
117 V
VoltageDoubler
RMSInputPerAnode
235 V
HalfWave

SECTION 2

Rectifier

Characteristic

HeaterOrFilamentVoltage
25 V
HeaterOrFilamentCurrent
300 mA

Other

RMSInputPerAnode
117 V
VoltageDoubler
RMSInputPerAnode
235 V
HalfWave

Data set 03

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Application

Service
Full-wave rectifier / voltage doubler

SECTION 2

Rectifier

Application

Service
Full-wave rectifier / voltage doubler