XCL 84 / 8DX8
0 Tubes in archive
BrandIBRAPE / MINIWATT
ClassTriode-Pentode
Filament7.8V @ 0.6mA
Construction
Primary TypeMulti-section
EnvelopeGlass
Sections2
Filament / Heater
Heater NotesIndirect heating for AC or DC series supply
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation4 W
Grid 2 Voltage250 V
Cathode Current40 mA
H-C Voltage200 V
Audio Performance
Key Features
- Separate cathodes
- Triode for AGC keyed and sync separation
- Pentode for video output
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode typical operation | 200V | 4000 | - | 65 | 3mA |
| Pentode typical operation set 1 | 170V | 11000 | 100000 | 36 | 18mA |
| Pentode typical operation set 2 | 200V | 10400 | 180000 | 36 | 18mA |
| Pentode typical operation set 3 | 220V | 10000 | 150000 | 36 | 18mA |
| Pentode video output set 1 | 170V |
Application Notes
Pentode designed specifically as video output valve; triode for keyed AGC, sync separation, and noise suppression.
Showing 1 to 0 of 0 results