Tube-number record
38A3
0 archive entries
BrandRogers Majestic Electronics, Ltd.
ClassSingle anode mains rectifying tube
BaseNoval (B9A)
Filament38 V @ 100 mA
Construction
Primary TypeDiode
Rectifier TypeHalf-wave
EnvelopeT6.5
Sections1
Filament / Heater
Heater NotesCoated unipotential
Absolute Maximum Ratings
Cathode Current110 mA
H-C Voltage550 V
Audio Performance
Key Features
- Unipotential cathode
- Mounting position Any
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Mains 110V | 112 V | — | — | — | 110 mA |
| Mains 127V | 135 V | — | — | — | 110 mA |
| Mains 220V | 215 V | — | 90 | — | 110 mA |
Application Notes
Single anode mains rectifying tube. Heater current is 0.1 amp.
Datasheets
Datasheet: 38A3.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results