30L15
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BrandEdiswan Mazda
ClassCascode RF Double Triode
BaseB9A
Filament7V @ 0.3mA
Construction
Primary TypeDouble Triode
EnvelopeMiniature
Base MaterialGlass
Sections2
Filament / Heater
Heater NotesIndirectly heated—for series operation
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2 W
Grid 1 Voltage-50 V
Cathode Current16 mA
Audio Performance
Key Features
- Separate cathodes
- Shielded sections
- AC/DC powered series heater chains
- Miniature based
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Circuit 1 (Potentiometer Bias) | 200V | 8500 | - | 26 | 15.3mA |
| Circuit 2 (Grid Current Bias) | 200V | 8600 | - | 26 | 14.8mA |
Application Notes
The 30L15 is designed for use as a Cascode RF Amplifier in television receivers.
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