Tube-number record
DAF11
0 archive entries
DAF11 is a tube type in the TubeDatabase archive (class: Regelbare NF-Pentode mit Diode). Recorded specifications: brand Telefunken, year 1941, construction Pentode, base Metal, socket Side-contact (P-base), maximum plate voltage 150 V, and maximum plate dissipation 0.6 W. The archive does not yet hold a photographed example of this type.
BrandTelefunken
ClassRegelbare NF-Pentode mit Diode
BaseSide-contact (P-base)
Construction
Primary TypePentode
EnvelopeGlass
Base MaterialMetal
Sections2
Filament / Heater
MaterialDirectly Heated
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Section (Set 1) | 120 V | 600 | 900000 | — | 1.4 mA |
| Pentode Section (Set 2) | 90 V | 550 | 700000 | — | 0.8 mA |
Application Notes
The tubes are dimensioned for heating from a single-cell dry battery. A range of 1.4V down to 0.9V is permissible.
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