19C8
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BrandTUNG-SOL
ClassTriple-Diode Triode
Base9-pin miniature
Filament18.9V @ 150mA
Construction
Primary TypeTriple-Diode Triode
EnvelopeGlass
Sections3 Diodes, 1 Triode
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation1 W
H-C Voltage200 V
Audio Performance
Key Features
- High perveance diodes
- Independent cathode for one diode
- High-mu triode
- Minimum switching for AM/FM receivers
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier - Triode Unit | 100V | 1250 | 80100 | 100 | 0.5mA |
Application Notes
One of the three diode plates has an independent cathode providing satisfactory operation in balanced low impedance detector circuits.
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