4 Sylvania 12SG7 Vacuum Tubes Valves Lot Of Four 5E514 5E-514 Both tubes have thin cracks

Both tubes have thin cracks in their bases

an engraved base

This album was recorded and manufactured in the Soviet Union

5 record cleaner and am playing it on my Rega Planar 1 as I write

(New 6679s typically test within 1

4 Sylvania 12SG7 Vacuum Tubes Valves Lot Of Four 5E514 5E-514 Both tubes have thin cracksThese four Sylvania 12SG7 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Their readings are 44, 52, 54 and 66 where minimum (65%) is 42. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUR ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST OF THE TUBES