Tube-number record
AL 860
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BrandVEB Röhrenwerk Anna Seghers
ClassEndpentode
BaseNoval (B9A)
Filament2.4 V @ 560 mA
Construction
Primary TypePentode
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesFilament is center-tapped; halves can be connected in parallel or series.
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation7.5 W
Grid 2 Voltage250 V
Cathode Current50 mA
Audio Performance
Key Features
- HF- oder NF-Verstärkung
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Parallel heating | 200 V | 6000 | — | 10 | 35 mA |
Application Notes
Used for HF or LF amplification. Heater halves can be parallel or series connected.
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