Tube-number record
7Z4
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BrandBrimar
ClassFull-wave Rectifier
BaseLoctal
Filament6.3 V @ 0.9 mA
Construction
Primary TypeRectifier
Rectifier Typeindirectly heated
EnvelopeGlass
Sectionsdouble diode
Filament / Heater
Absolute Maximum Ratings
Plate Voltage1250 V
Cathode Current300 mA
H-C Voltage450 V
Audio Performance
Key Features
- Indirectly heated
- Full-wave
- A.C. and car radio equipment use
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Condenser Input | 325 V | — | — | — | 100 mA |
Datasheets
Datasheet: 7Z4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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