Tube-number record
DAF70
0 archive entries
DAF70 is a tube type in the TubeDatabase archive (class: Subminiature A.F. Pentode and Single Diode). Recorded specifications: brand Mullard, construction Pentode, base Glass, socket B8D / B8F, and maximum plate voltage 90 V. The archive does not yet hold a photographed example of this type.
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
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.
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