Tung-Sol 12BK5 Vacuum Tube NOS NIB Type Number These five RCA 5763 tubes

These five RCA 5763 tubes tested as follows on our Paul Hart-calibrated TV7/U:

000 VACUUM TUBES

They tested 8

(New / nominal transconductance is within one standard deviation of 1900

WE WILL HAPPILY SEND YOUR PACKAGE TO A NEIGHBORING COUNTRY OR MAKE SUITABLE ARRANGEMENTS

Tung-Sol 12BK5 Vacuum Tube NOS NIB Type Number These five RCA 5763 tubesThis new old stock, new in box Tung Sol 12BK5 and several others just like it tested to spec on our Paul Hart calibrated TV7 U. Three of these tubes are available initially in this Dutch Auction. Etsy will indicate how many are available. 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