Tube-number record
6550-A
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BrandGeneral Electric
ClassBeam Power Pentode
BaseOctal
Filament6.3 V @ 1.6 mA
Construction
Primary TypeBeam tetrode / beam power
EnvelopeT-14
Base MaterialMicanol
Sections1
Filament / Heater
Heater NotesHeater voltage +/- 0.6V
Absolute Maximum Ratings
Plate Voltage660 V
Plate Dissipation42 W
Grid 2 Voltage440 V
Cathode Current190 mA
H-C Voltage300 V
Audio Performance
Typical THD0.7%
Power Output100 W
Key Features
- Up to 100 Watts Output - 2 Tubes in Push-Pull
- Straight sided T-14 envelope
- Low loss Micanol base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Connection | 250 V | 11000 | 15000 | 8 | 140 mA |
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