Svetlana Electron Devices, St. Petersburg: The Svetlana winged C is a major Russian power-tube manufacturer. Formerly a part of the huge Svetlana collective factory. The Svetlana/winged C are the original items made by the JSC Svetlana Company that owns and operates the Svetlana factory in St. Petersburg, Russia.
This factory has a long history of making valves and transmitting valves .In fact have been making vacuum tubes for over 100 years. These valves have constantly topped not only our own valve reviews but also in audio and guitar reviews the world over. They offer some of the best sounding types available today.
These are the Original Svetlana 6L6GC which are also known as Winged C due to the company's original trade mark logo that is on the valve.
The Svetlana 6L6GC tight manufacturing specification and tolerances and improved processing provided the best made modern 6L6GC with improved reliability and superior sonic performance that rivalled the old USA made valves.

The Svetlana 6L6GC features thick mica spacers and internal bracing to help reduce vibrations and microphonics. It features a gold plated molybdenum alloy control grid and graphite coated screen grid to reduce secondary emission.
The valve produces an even and rich soundstage without sounding muddy under full distortion. This is the best clean sounding current production 6L6GC made today.

The bass response is rock solid and very well balanced. The top end is very smooth with no hardness. They come dual matched in quads as is without doubt the best sounding 6L6GC on the market today.