Tube-number record
EABC 80 / PABC 80 / UABC 80
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BrandVEB Werk für Fernmeldewesen
ClassTriple Diode Triode
BaseNoval (B9A)
Filament6.3 V @ 450 mA
Construction
Primary TypeMulti-section
EnvelopeGlass
Sections4
Filament / Heater
Heater NotesIndirectly heated oxide cathode
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1 W
Audio Performance
Key Features
- Miniature (Noval) base
- High internal resistance Diode I for AM demodulation
- Low internal resistance Diode II/III for FM ratio detection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Static Point 1 | 250 V | 1200 | 58000 | 70 | 1 mA |
| Triode Static Point 2 | 200 V | 1600 | 46000 | 70 | 1.35 mA |
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