Tube-number record
6BD4A
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BrandSylvania
ClassVoltage Regulator Beam Triode
BaseOctal
Filament6.3 V @ 600 mA
Construction
Primary TypeBeam tetrode / beam power
EnvelopeT12
Base MaterialCoated Unipotential
SectionsSingle
Filament / Heater
Heater NotesPeak Heater-Cathode Voltage: 180 Volts Max
Absolute Maximum Ratings
Plate Voltage27000 V
Plate Dissipation25 W
Grid 1 Voltage-125 V
Cathode Current1.5 mA
H-C Voltage180 V
Audio Performance
Key Features
- Low current
- Sharp cutoff
- High voltage regulation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Shunt Voltage Regulator | 20000 V | 138 | — | 1650 | — |
| Shunt Voltage Regulator | 27000 V | 116 | — | 1650 | — |
Application Notes
X-ray radiation shielding may be necessary to protect against personal injury if operated at higher than 16,000 volts.
Datasheets
Datasheet: 6BD4A.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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