Tube-number record
12BY3
0 archive entries
12BY3 is a tube type in the TubeDatabase archive (class: Half-wave vacuum rectifier). Recorded specifications: brand Toshiba, construction Diode, socket Noval (B9A), maximum plate voltage 4500 V, and maximum plate dissipation 4 W. The archive does not yet hold a photographed example of this type.
BrandToshiba
ClassHalf-wave vacuum rectifier
BaseNoval (B9A)
Filament12.6 V @ 450 mA
Construction
Primary TypeDiode
Rectifier TypeHalf-wave
EnvelopeT6-1/2
Sections1
Filament / Heater
Warm-up Time11s
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Tube Voltage Drop | 21 V | — | — | — | 250 mA |
Datasheets
Datasheet: 12BY3.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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