Tube-number record
7212
0 archive entries
7212 is a tube type in the TubeDatabase archive (class: Beam Power Tube). Recorded specifications: brand RCA, year 1962, construction Beam tetrode / beam power, base Micanol, socket Octal, maximum plate voltage 750 V, and maximum plate dissipation 25 W. The archive does not yet hold a photographed example of this type.
BrandRCA
ClassBeam Power Tube
BaseOctal
Filament6.3 V @ 1250 mA
Construction
Primary TypeBeam tetrode / beam power
EnvelopeT12
Base MaterialMicanol
SectionsSingle
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class AB1 CCS Push-Pull | 600 V | 7000 | — | 4.5 | 100 mA |
| Class C Telegraphy ICAS | 750 V | — | — | — | 120 mA |
Application Notes
Specifically designed for use under severe shock and vibration. Features a small Micanol-wafer octal 8-pin base with 770 sleeve.
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