AT4
0 Tubes in archive
BrandMullard
ClassTriode
BaseAcorn
Filament4V @ 250mA
Construction
Primary TypeTriode
EnvelopeAcorn
Base MaterialCeramic
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage200 V
Plate Dissipation1.1 W
Grid 1 Voltage-1.5 V
Cathode Current6 mA
H-C Voltage50 V
Audio Performance
Power Output0.5 W
Key Features
- Acorn type specially designed for ultra high frequencies
- Operation up to 450 Mc
- Maintained output up to 300 Mc
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 180V | 2000 | - | - | 4.5mA |
| Oscillator or H.F. Amplifier (Class C) | 180V | - | - | - | 8mA |
| Anode Detector | 180V | - | 250000 | - | 0.2mA |
| Grid Detector | 45V | - | - | - | - |
Application Notes
It is essential that components, layout and screening conform to the requirements of the frequency. Leads should be of minimum length. Connections must not be soldered to the contacts on the valve.
Showing 1 to 0 of 0 results