Tube-number record
3B2
0 archive entries
3B2 is a tube type in the TubeDatabase archive (class: High Voltage Rectifier). Recorded specifications: brand SYLVANIA, year 1956, construction Rectifier, socket Octal, and maximum plate voltage 35000 V. The archive does not yet hold a photographed example of this type.
BrandSYLVANIA
ClassHigh Voltage Rectifier
BaseOctal
Filament1.5 V @ 220 mA
Construction
Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeT-12
Sections1
Filament / Heater
Heater NotesCoated Unipotential Cathode
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Tube Drop with DC | 135 V | — | — | — | 7 mA |
Application Notes
The Sylvania Type 3B2 is designed for application as a high voltage rectifier in color television receivers.
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