A collection of Svetlana 6550C and General Electric 12AT7WC vacuum tubes, also known as valves, intended for high-fidelity audio or musical instrument amplification. The collection includes several white boxes for Svetlana 6550C power tubes, with handwritten notations stating they are original from 1999 and indicating matched pairs with numerical markings of 48 / 48 and 46 / 46. One loose tube is present, bearing markings for Svetlana Electron Tube, 6550B, and Made in Russia. Also included is a vacuum tube in a General Electric (GE) box, marked as Made by G. E. Co. U.S.A. with a military-grade 12AT7WC designation and a date code of 4/74. The group is shown with a larger shipping box from Watford Valves. These components are constructed from glass and metal with plastic or phenolic bases.
Condition report:
The items appear to be New Old Stock (NOS) in original packaging. The glass envelopes and bases show no visible cracks, chips, or signs of use. One tube is currently outside of its original box. The cardboard packaging exhibits minor age-related wear, toning, and handwritten inscriptions. All tubes are sold as seen and have not been tested for electronic performance, gain, or transconductance.
Share this lot:
