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
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
• Single-piece beam forming electrode
• Precise grid / screen alignment
• Improved vacuum processing
• Comprehensive Static and Audio Amplifier testing before and after aging
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 features combine to bring superb sound from the new Svetlana SV6550C.