Tube-number record
OQQ 55/1500
0 archive entries
OQQ 55/1500 is a tube type in the TubeDatabase archive (class: Strahlungsgekühlte Sendetriode). Recorded specifications: brand Tungsram, construction Triode, socket 4-pin, maximum plate voltage 1500 V, and maximum plate dissipation 55 W. The archive does not yet hold a photographed example of this type.
BrandTungsram
ClassStrahlungsgekühlte Sendetriode
Base4-pin
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Materialthoriated tungsten
Absolute Maximum Ratings
Plate Voltage1500 V
Plate Dissipation55 W
Grid 1 Voltage-400 V
Audio Performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| HF-C-Verstärker, unmodulierter Telegrafiebetrieb | 1500 V | 2200 | — | 20 | 135 mA |
| NF-B-Verstärker (2 tubes in push-pull) | 1500 V | — | — | — | 110 mA |
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