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Rectifier - Full Wave ·Rectifier-Rectifier

25Z6WGT

Ruggedized heater-cathode twin-diode high-vacuum rectifier for receiver power supplies. Its octal construction supports half-wave and voltage-doubler operation with approximately 730 V peak inverse-voltage capability and 85 mA nominal output.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 7Q
Socket code: IO
Base pins: 7
Nominal heater: 25 V / 300 mA

Description

The 25Z6WGT is a ruggedized heater-cathode twin-diode high-vacuum rectifier/doubler in octal construction, designed for receiver power supplies and usable in half-wave or voltage-doubler configurations.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 7Q
Socket code: IO
Base pins: 7
Nominal heater voltage: 25 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

7Q - 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 peak inverse voltage: 730 V
Rectifier nominal output current: 85 mA
Rectifier peak forward current: 500 mA
Rectifier forward voltage drop: 22 V
Rectifier max heater-cathode voltage: 350 V

Representative row for two identical rectifier sections.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 730 V
Rectifier nominal output current: 85 mA
Rectifier peak forward current: 500 mA
Rectifier forward voltage drop: 22 V
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

195X General Electric Essential Characteristics

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
Tube voltage drop
22 V
At 150 mA DC

Other

DC output current
75 mA
RectifierDoubler
Peak inverse voltage
700 V
RectifierDoubler
RMS supply voltage
235 V
RectifierDoubler
Peak current
450 mA
RectifierDoubler

SECTION 2

Rectifier

Characteristic

Heater/filament voltage
25 V
Published heater/filament rating
Heater/filament current
300 mA
Published heater/filament rating
Tube voltage drop
22 V
At 150 mA DC

Other

DC output current
75 mA
RectifierDoubler
Peak inverse voltage
700 V
RectifierDoubler
RMS supply voltage
235 V
RectifierDoubler
Peak current
450 mA
RectifierDoubler

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

PlateSupplyVoltageRMS
235 V
HalfWave;CapacitorInputFilter
Filter Input Capacitor
16 uF
HalfWave;CapacitorInputFilter

SECTION 2

Rectifier

Other

PlateSupplyVoltageRMS
235 V
HalfWave;CapacitorInputFilter
Filter Input Capacitor
16 uF
HalfWave;CapacitorInputFilter

Data set 03

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Peak inverse plate voltage
730 V
WholeTube
DC output current per plate
85 mA
WholeTube
Peak plate current per plate
500 mA
WholeTube
Tube voltage drop at 150 mA
22 V
Characteristic
Plate supply voltage RMS per plate
117 V
CapacitorInputFilter
Filter input capacitor
16 µF
CapacitorInputFilter
DC output current per plate
75 mA
CapacitorInputFilter
DC output voltage
115 V
CapacitorInputFilter

SECTION 2

Rectifier

Other

Peak inverse plate voltage
730 V
WholeTube
DC output current per plate
85 mA
WholeTube
Peak plate current per plate
500 mA
WholeTube
Tube voltage drop at 150 mA
22 V
Characteristic
Plate supply voltage RMS per plate
117 V
CapacitorInputFilter
Filter input capacitor
16 µF
CapacitorInputFilter
DC output current per plate
75 mA
CapacitorInputFilter
DC output voltage
115 V
CapacitorInputFilter