NF 3
0 Tubes in archive
BrandTelefunken
ClassRegelpentode
Base8-pol. Außenkontaktsockel
Filament12.6V @ 195mA
Construction
Primary TypePentode
EnvelopeGlass
Base MaterialMetal/Side-contact
SectionsSingle
Filament / Heater
Heater NotesSerienschaltung zum Betrieb aus 25-Volt Starterbatterien zugelassen
Absolute Maximum Ratings
Plate Voltage200 V
Plate Dissipation1.5 W
Grid 2 Voltage125 V
Cathode Current8 mA
H-C Voltage125 V
Audio Performance
Key Features
- Variable-mu (Regelpentode)
- Indirectly heated
- Low grid-to-plate capacitance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard Characteristics | 200V | 2300 | 700000 | - | 4.5mA |
Application Notes
Designed for radio frequency stages and operation from 25V battery systems.
Sort by
Showing 1 to 0 of 0 results