Tube-number record
RL4,2P6
0 archive entries
RL4,2P6 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Telefunken, construction Pentode, base Metal, socket Special / none, maximum plate voltage 250 V, and maximum plate dissipation 7.5 W. The archive does not yet hold a photographed example of this type.
BrandTelefunken
ClassPentode
BaseSpecial / none
Construction
Primary TypePentode
EnvelopeGlass
Base MaterialMetal
SectionsSingle
Filament / Heater
MaterialOxydkathode, direkt geheizt
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| NF-Endverstarker (150V) | 150 V | 6000 | — | — | 35 mA |
| NF-Endverstarker (200V) | 200 V | 6000 | — | — | 35 mA |
Application Notes
Heater can be used at 2.1V in parallel configuration. Series connection of 3 tubes with a 12.6V battery is permitted with specific resistor balancing.
0 results