12Z3
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ClassRectifier
BaseSmall 4-Pin
Filament12.6V @ 300mA
Construction
Primary TypeHalf-wave high-vacuum rectifier
Rectifier TypeHalf-wave
EnvelopeST-12
Sections1
Filament / Heater
Heater NotesDesigned for series operation with other 0.3 ampere types.
Absolute Maximum Ratings
Plate Voltage250 V
Cathode Current60 mA
H-C Voltage350 V
Audio Performance
Key Features
- Heater-cathode type
- Transformerless receiver design
- Universal type
- High-vacuum
Application Notes
The 12Z3 is particularly useful in transformerless receivers of the universal type. A filter of the condenser-input type is recommended, with a large input capacitance in the order of 16 uF desirable.
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