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Rectifier - Full Wave ·Rectifier-Rectifier

25Z5

Indirectly heated full-wave rectifier and voltage-doubler tube for AC/DC receiver power supplies. Rated for approximately 700 V peak inverse voltage and 75 mA nominal output from a 25 V heater.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 6E
Socket code: UX6
Base pins: 6
Nominal heater: 25 V / 300 mA

Description

Full-wave rectifier and voltage-doubler tube.

Socket description

Small 6-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 6E
Socket code: UX6
Base pins: 6
Nominal heater voltage: 25 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

6E - 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: 700 V
Rectifier nominal output current: 75 mA
Rectifier peak forward current: 450 mA
Rectifier forward voltage drop: 22 V
Rectifier max heater-cathode voltage: 350 V

Representative row for two identical rectifier sections; 22 V drop at 150 mA per plate.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 700 V
Rectifier nominal output current: 75 mA
Rectifier peak forward current: 450 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

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
100 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
100 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

1940 RCA

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

HEATER VOLTAGE (A. C.or D. GC)
25 V
HEATER VOLTAGE (A. C.or D. GC)............... 25 Volts
HEATER CURRENT ....vevivnenrnnnnennnennannn
300 mA
HEATER CURRENT ....vevivnenrnnnnennnennannn. 0.3 Ampere
A-C PLaTE VoLtage Per PrLate (RMS)
125 V
A-C PLaTE VoLtage Per PrLate (RMS).......... 125 max. Volts
PeAx PLATE CURRENT...........cooiiiiininn
500
PeAx PLATE CURRENT...........cooiiiiininn.. 500 max. Milliamperes
D-C OUTPUT CURRENT. ..t eineenennennnnnnnn
100
D-C OUTPUT CURRENT. ..t eineenennennnnnnnn.. 100 max. Milliamperes
A-C PLATeE VoLTAGE Per Prate (RMS)
250 V
A-C PLATeE VoLTAGE Per Prate (RMS)... 125 max. 250* max. Volts
Peak PLaTeE CURRENT (per plate)
500
Peak PLaTeE CURRENT (per plate).......... 500 max. 500 max. Milliamperes
D-C QutpuT CURRENT (per plate)...eocvn
85
D-C QutpuT CURRENT (per plate)...eocvn. 85 85 max. Milliamperes
® On a-c input voltage above
100 V
® On a-c input voltage above 125 volts, it is necessary to connect a 100 ohm resistor in series
with each plate lead, or a
100 ohm
with each plate lead, or a 100 ohm resistor common to both plates (giving somewhat poorer regula-
°PERAT"
8
°PERAT"8£“_ wﬁU@%@gfFR'ST'CS OPERATION AGE
L Eg=
225 V
L Eg=25 VOLTS | €225 voLTs
_£¢=
25 V
_£¢=25 VOLTS - | € ¢=25 VOLTS
INFUT VOLTS | CURVE |
1 V
INFUT VOLTS | CURVE | . 30— | vt d—1

SECTION 2

Rectifier

Other

HEATER VOLTAGE (A. C.or D. GC)
25 V
HEATER VOLTAGE (A. C.or D. GC)............... 25 Volts
HEATER CURRENT ....vevivnenrnnnnennnennannn
300 mA
HEATER CURRENT ....vevivnenrnnnnennnennannn. 0.3 Ampere
A-C PLaTE VoLtage Per PrLate (RMS)
125 V
A-C PLaTE VoLtage Per PrLate (RMS).......... 125 max. Volts
PeAx PLATE CURRENT...........cooiiiiininn
500
PeAx PLATE CURRENT...........cooiiiiininn.. 500 max. Milliamperes
D-C OUTPUT CURRENT. ..t eineenennennnnnnnn
100
D-C OUTPUT CURRENT. ..t eineenennennnnnnnn.. 100 max. Milliamperes
A-C PLATeE VoLTAGE Per Prate (RMS)
250 V
A-C PLATeE VoLTAGE Per Prate (RMS)... 125 max. 250* max. Volts
Peak PLaTeE CURRENT (per plate)
500
Peak PLaTeE CURRENT (per plate).......... 500 max. 500 max. Milliamperes
D-C QutpuT CURRENT (per plate)...eocvn
85
D-C QutpuT CURRENT (per plate)...eocvn. 85 85 max. Milliamperes
® On a-c input voltage above
100 V
® On a-c input voltage above 125 volts, it is necessary to connect a 100 ohm resistor in series
with each plate lead, or a
100 ohm
with each plate lead, or a 100 ohm resistor common to both plates (giving somewhat poorer regula-
°PERAT"
8
°PERAT"8£“_ wﬁU@%@gfFR'ST'CS OPERATION AGE
L Eg=
225 V
L Eg=25 VOLTS | €225 voLTs
_£¢=
25 V
_£¢=25 VOLTS - | € ¢=25 VOLTS
INFUT VOLTS | CURVE |
1 V
INFUT VOLTS | CURVE | . 30— | vt d—1

Data set 03

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 04

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

Data set 05

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 06

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

ACPlateVoltageRMS
235 V
PerPlate
PlateSupplyImpedance
20 ohm
VoltageDoubler;HalfWave
PlateSupplyImpedance
15 ohm
VoltageDoubler;FullWave

SECTION 2

Rectifier

Other

ACPlateVoltageRMS
235 V
PerPlate
PlateSupplyImpedance
20 ohm
VoltageDoubler;HalfWave
PlateSupplyImpedance
15 ohm
VoltageDoubler;FullWave