Tube-number record
1644
0 archive entries
1644 is a tube type in the TubeDatabase archive (class: Twin-Pentode Power Amplifier). Recorded specifications: brand RCA, year 1943, construction Pentode, socket Octal, maximum plate voltage 250 V, and maximum plate dissipation 5 W. The archive does not yet hold a photographed example of this type.
BrandRCA
ClassTwin-Pentode Power Amplifier
BaseOctal
Filament12.6 V @ 150 mA
Construction
Primary TypePentode
EnvelopeGT
Sections2
Filament / Heater
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation5 W
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A (Per Section) | 250 V | 2100 | 100000 | — | 11 mA |
Application Notes
Specifically designed for applications requiring precise matching between the two pentode sections.
0 results