Offered is a lot of (6) 5963 Twin Triode Tubes by RCA.  The tubes are clean and in good condition.  These tubes have nearly completely worn printed graphics.  Each tests good on the EICO dynamic tester and they show no shorts.  These are late 1950's and early 1960's vintage-one has dark black plates. The other tubes have dark grey ladder style plates and top "D" getters with all good silver flashing. These are reliable long-life 12AU7/ECC82 types used for Industrial or Military applications. Suitable for audio amps as well as radios or communications gear.  Pick up the tubes for your own equipment. Mouse over the photo images to zoom in. NO RESERVE!! Thanks for looking.