4 General Electric GE 2D21 Vacuum Tubes NOS NIB Lot Of Four Quad Other Great Hits 72 and 75 respectively

72 and 75 respectively

new in box US-made National 2N688 rectifiers

a crenelated

Transconductance measured 22 where minimum (65%) is 15

new in box GE 25BK5 tube tested to spec on our Paul Hart-calibrated TV7/U

4 General Electric GE 2D21 Vacuum Tubes NOS NIB Lot Of Four Quad Other Great Hits 72 and 75 respectivelyThese four new old stock, new in box GE 2D21 tubes tested to spec on our TV7. 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