Tube-number record
DDD11
0 archive entries
DDD11 is a tube type in the TubeDatabase archive (class: Doppelendtriode). Recorded specifications: brand TELEFUNKEN, year 1941, construction Triode, socket Side-contact (P-base), and maximum plate voltage 150 V. The archive does not yet hold a photographed example of this type.
BrandTELEFUNKEN
ClassDoppelendtriode
BaseSide-contact (P-base)
Construction
Primary TypeTriode
EnvelopeStahlröhre
Sections2
Filament / Heater
Materialdirekt geheizt
Absolute Maximum Ratings
Plate Voltage150 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| B-Verstärkung | 120 V | — | 14000 | — | 1.5 mA |
| B-Verstärkung | 90 V | — | 14000 | — | 1.4 mA |
Application Notes
Die Röhren sind für Heizung aus einer einzelligen Trockenbatterie dimensioniert. Bezugspunkt für alle Spannungswerte ist das negative Heizfadenende.
0 results