| The Svetlana SV6550C is a glass
envelope beam power pentode. It is intended for ultra linear
audio frequency power amplification service. Close manufacturing
specification tolerances and improved processing provides
improved reliability and superior sonic performance. The
Svetlana SV6550C is manufactured in the Svetlana factory
in St. Petersburg, Russia, and is designed to be a direct
replacement for any 6550.
The new SV6550C features greatly enhanced sonic performance:
• Increased peak cathode emission from new cathode
materials.
• Stable operation from extended processing and aging.
• New gold-plated grid.
• New tri-plate anode.
• Single-piece beam formaing electrode.
• Precise grid/screen alignment.
• Improved vacuum processing.
• Comprehensive Static and Audio Amplifier testing before
and after aging. These features combine to bring superb
sound from the new Svetlana SV6550C.
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