Tube-number record
3BC5
0 archive entries
3BC5 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Sylvania, construction Pentode, socket Miniature 7-pin (B7G), maximum plate voltage 300 V, and maximum plate dissipation 2 W. The archive does not yet hold a photographed example of this type.
BrandSylvania
ClassPentode
BaseMiniature 7-pin (B7G)
Filament3.15 V @ 600 mA
Construction
Primary TypePentode
EnvelopeT5 1/2
SectionsSingle
Filament / Heater
Warm-up Time11s
Heater NotesControlled heater warm-up time for series string operation
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier - Pentode Connected | 100 V | 4900 | 600000 | — | 4.7 mA |
| Class A Amplifier - Pentode Connected | 125 V | 6100 | 500000 | — | 8 mA |
| Class A Amplifier - Pentode Connected | 250 V | 5700 | 800000 | — |
Datasheets
Datasheet: 3BC5.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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