Just found... from a vintage collection.... these are outstanding; probably the best currently on eBay. All original 1960s, early RCA 6L6GC black plate tubes - NOS, testing strong, NOS in old RCA boxes — all black plates, single side getter, 6 hole plate, these are the Real McCoy, now almost 50 years old, and sounding great & fresh. Current plate matched WITHIN 1% of each other -- very balanced. Matching date codes from May & August 1966! Tested thoroughly and played…stout eP 250V (plate voltage).  SO GUARANTEED working perfect, no DOA. SHIPPED QUICKLY, after payment, overseas OK. Both units were LAB tested tested twice with different, calibrated testers, then briefly played and sounding great.  Cosmetics are nice, all have the etched "stop sign" 6L6GC in glass. WE ARE 100% postive, 5 star sellers, so you happiness is assured. You don't see truly "like new" black plate tubes too often!! The side flashing is thick and mirror shine and thickness. Beautiful specimens of the single side, halo getter, black plate RCA. Online & elsewhere you would pay far more for RCA black plates like this -- (if you can find them in stock.) We will pack carefully in OVERSIZED SAFE PACKING in double box! FAST SHIPPING, WILL DISPATCH IMMEDIATELY after PAYMENT -- OVERSEAS OK, FULL TRACKING number via email after shipment.  

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