RCA 931 931A Photomultiplier Vacuum Tube Voronezh Girls Vocal the centering pin is missing

the centering pin is missing on Tube One and Tube Two's base is cracked

CHINA IS AN EXCELLENT EXAMPLE

Its only flaw is an inscription on the first blank page

This lot of five GE 12CR6 tube tested to spec on our Jackson 648 Mutual Conductance tester and come in a sleeve

RCA 931 931A Photomultiplier Vacuum Tube Voronezh Girls Vocal the centering pin is missingThis RCA 931A photomultiplier tube could not be tested and are sold as is. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT 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 FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP TO $250 IN VALUE. IF AN ITEM IS