Tube-number record
LB 13/40
0 archive entries
LB 13/40 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Telefunken, construction Other / special, socket 8-pin, and maximum plate voltage 4000 V. The archive does not yet hold a photographed example of this type.
BrandTelefunken
ClassCathode Ray Tube
Base8-pin
Filament4 V @ 1 mA
Construction
Primary TypeOther / special
EnvelopeGlass
Filament / Heater
Heater NotesNormalheizspannung 4V, indirekt geheizte Oxydkathode
Absolute Maximum Ratings
Plate Voltage4000 V
Grid 1 Voltage-130 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Polar-Koordinatenschreibung | 4000 V | — | — | — | — |
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