Matched Pair Svetlana 6550C/KT88 'Winged C' Valves/Vacuum Tubes - AVO Tested Strong.    Excellent used tightly matched pair, one of the best recent construction 6550's.  Rectangular plate cut out's from the SED facility in St. Petersburg, Winged C's, the sought after ones for hifi / guitar.

Tested on a recently calibrated AVO VCM 160 as KT88's with the following results;       

Anode / Plate voltage at 250v and -8 grid volts

                         IA      GM
Valve 1:   A1   76.5    7.8               
Valve 2:   A1   78.5    8.0   

AVO NOS Specs:  IA = 57.0 GM = 8.0  

No leaks or shorts / gas, solid base, shiny pins. eBay seller for over 21 years, buy with confidence - see feedback.  Valves will be shipped next day, carefully packaged, tracked and insured.  Please drop a note with any questions.

Shipping happily combined on multiple items.

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Don't use your amp as a circuit breaker, buy tested valves!


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