PZ30

Indirectly heated dual rectifier designed for television half-wave and voltage-doubler power supplies. Its two sections are intended for mains-derived voltage multiplication rather than flyback EHT generation.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: -
Base pins: -
Nominal heater: 52 V / 300 mA

Description

Indirectly heated two-section rectifier for half-wave or voltage-doubler television supplies.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: 52 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 peak inverse voltage: 1000 V
Rectifier nominal output current: 400 mA
Rectifier max heater-cathode voltage: 650 V

Published ratings and characteristics promoted from the supplied valve-data source where explicitly available.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier nominal output current: 200 mA
Rectifier max heater-cathode voltage: 650 V

Second separate half-wave rectifier section; electrically identical.

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

1951 Mullard Valve and Service Manual

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

HeaterOrFilamentVoltage
52 V
HeaterOrFilamentCurrent
300 mA
Application
VoltageDoubler

Other

RMSInputVoltage
240 V
HalfWave
DC Output Current
400 mA
HalfWave
Reservoir Capacitance
50 uF
HalfWave
Limiting Resistance Per Anode
50 ohm
HalfWave

Data set 02

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

RMS anode voltage maximum
240 V
Reservoir capacitance maximum
50 uF
CapacitorInputFilter
Half-wave operating point
200 V RMS; 400 mA output; 160 V DC; 50 ohm min; 50 uF
CapacitorInputFilter
Half-wave operating point
240 V RMS; 400 mA output; 205 V DC; 50 ohm min; 50 uF
CapacitorInputFilter
Voltage-doubler operating point
220 V RMS; 200 mA output; 425 V DC; 30 ohm min; 2x32 uF
Voltage-doubler operating point
240 V RMS; 200 mA output; 480 V DC; 30 ohm min; 2x32 uF

SECTION 2

Rectifier

Other

RMS anode voltage maximum
240 V
Reservoir capacitance maximum
50 uF
CapacitorInputFilter