Tube-number record
DAF70
0 archive entries
BrandMullard
ClassSubminiature A.F. Pentode and Single Diode
BaseB8D / B8F
Construction
Primary TypePentode
Rectifier TypeSingle Diode
EnvelopeSubminiature
Base MaterialGlass
SectionsCombined Diode-Pentode
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage90 V
Grid 2 Voltage90 V
Cathode Current1.3 mA
Audio Performance
Typical THD10%
Power Output0.02 W
Key Features
- Subminiature construction
- Directly heated filament
- Battery operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Characteristics | 67.5 V | 440 | 400000 | 16 | 1 mA |
| Class A (67.5V) | 67.5 V | — | — | — | 0.4 mA |
| Class A (90V) | 90 V | — | — | — | 0.6 mA |
Application Notes
Direct soldered connections to leads must be at least 5mm from the seal. Any bending of leads must be at least 1.5mm from the seal.
Datasheets
Datasheet: DAF70.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results