7Z4
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BrandBrimar
ClassFull-wave Rectifier
BaseLoctal
Filament6.3V @ 0.9mA
Construction
Primary TypeFull-wave Rectifier
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 | 325V | - | - | - | 100mA |
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