Tube-number record
EL 861
0 archive entries
EL 861 is a tube type in the TubeDatabase archive (class: Endpentode). Recorded specifications: brand VEB Werk für Fernmeldewesen, year 1956, construction Pentode, socket Noval (B9A), maximum plate voltage 210 V, and maximum plate dissipation 4.5 W. The archive does not yet hold a photographed example of this type.
BrandVEB Werk für Fernmeldewesen
ClassEndpentode
BaseNoval (B9A)
Filament6.3 V @ 375 mA
Construction
Primary TypePentode
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesHeater current corrected from 230mA to 375mA per Berichtigungsblatt
Absolute Maximum Ratings
Plate Voltage210 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pre-amplifier (Vorverstärker) | 210 V | 10000 | 400000 | 175 | 15 mA |
| Output amplifier (Endverstärker) | 210 V | 11000 | 300000 | — | 20 mA |
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