ECH 2
0 Tubes in archive
BrandPhilips
ClassTriode-Heptode
Filament6.3V @ 0.95mA
Construction
Primary TypeTriode-Heptode
Sections2
Filament / Heater
Heater NotesIndirect heating, parallel filament supply
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1 W
Grid 2 Voltage125 V
Grid 1 Voltage-1.3 V
Cathode Current25 mA
H-C Voltage50 V
Audio Performance
Key Features
- Independently heated
- Frequency converter
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Heptode section as frequency converter | 250V | 750 | 1500000 | - | 3.25mA |
| Triode section as oscillator | 100V | 5500 | - | 17.5 | 9.5mA |
Sort by
Showing 1 to 0 of 0 results