GZ33

Indirectly heated full-wave rectifier for high-current electronic power supplies. Its heavy five-volt heater supports substantial DC output in amplifier and professional equipment.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: IO
Base pins: -
Nominal heater: 5 V / 3 A

Description

FULL-WAVE RECTIFIER Indirectly heated ful/-wave rectifier GI33 with 5-volt

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: 5 V
Nominal heater current: 3 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

2 physical sections, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 1400 V
Rectifier nominal output current: 300 mA
Rectifier peak forward current: 750 mA

Published Mullard ratings, characteristics, operating conditions, and capacitances extracted from supplied datasheet.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 1400 V
Rectifier nominal output current: 300 mA
Rectifier peak forward current: 750 mA

Physical rectifier section 2; identical section values duplicated per physical-section policy.

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

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

HeaterOrFilamentVoltage
5 V
HeaterOrFilamentCurrent
3 A

Other

PeakInverseVoltageMaximum
1400 V
PeakAnodeCurrentMaximum
750 mA
SurgeCurrentMaximum
2.5 A
RMSInputVoltagePerAnodeMaximum
500 V
CapacitorInputFilter
DCOutputCurrentMaximum
250 mA
CapacitorInputFilter
ReservoirCapacitanceMaximum
60 uF
CapacitorInputFilter
RMSInputVoltagePerAnodeMaximum
500 V
ChokeInputFilter
DCOutputCurrentMaximum
300 mA
ChokeInputFilter
MinimumChokeInductance
10 H
ChokeInputFilter
DC Output Voltage
493 V
CapacitorInputFilter;RMSInput=500V;C=60uF
DC Output Voltage
421 V
ChokeInputFilter;RMSInput=500V;L=10H

Data set 02

1967 Mullard Receiving Tubes for Maintenance

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

P.I.V. max
1.4 V
Characteristic
Vatr.m.s.) max
500 V
Characteristic
lout max
250 mA
Characteristic
Valr.m •.) max
500 V
Characteristic