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SV6550C

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BrandSvetlana
ClassBeam Power Pentode
BaseOctal
Filament6.3V @ 1.6mA

Construction

Primary TypeBeam Power Pentode
EnvelopeGlass
Base MaterialMetal sleeve with large wafer octal 8-pin
Sections1

Filament / Heater

Heater NotesAC or DC

Absolute Maximum Ratings

Plate Voltage680 V
Plate Dissipation35 W
Grid 2 Voltage400 V
Grid 1 Voltage-300 V
Cathode Current175 mA
H-C Voltage300 V

Audio Performance

Typical THD5%
Power Output12 W
Key Features
  • Increased peak cathode emission
  • Gold-plated grid
  • Tri-plate anode
  • Single-piece beam forming electrode
  • Precise grid/screen alignment
  • Improved vacuum processing

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A1 (single tube)400V9500--87mA

Application Notes

Intended for ultra linear audio frequency power amplification service. Manufactured in St. Petersburg, Russia. Direct replacement for any 6550.

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