Full-Wave Gas Rectifier
Various Name Brands.
The 0Z4A / OZ4A Vacuum tube is a metal type used in
vibrator-type, B-supply units. It is
a cold-cathode type, requires an octal socket and may be
mounted in any position. These tubes were used in many
early automobile radios. It was first developed in 1947.
0Z4A is primarily used for vibrator-type B-supply units of automobile receivers.
It utilizes a starter electrode and an ionically heated cathode. RF filter circuits placed
close to socket terminals are required to reduce rectifier noise. It is 1.6KV peak and uses
30 to 110mA dc current.
0Z4 and 0Z4G tubes run from 30 to 90mA dc current. The 0Z4A tube has a higher DC milliamp
current. They run from 30 to 110mA dc current.
Maximum Ratings (Design Center Values)
Diode
AC Plate Supply Voltage Each Plate ............ 500 V
Steady State Peak Plate Current Each Plate .... 200 mA
Steady State DC Output Current Each Plate ..... 37.5 mA
Voltage Drop @ Current ........................ 24 V @ 75 mA
Characteristics and Typical Operation
Rectifier
Output Voltage ................................ 300 V
Output Current ................................ 75 mA
Preferred Substitutes .............. 0Z4A, CK1003, 1003_Rectifier, CV517.