6 American 7X7 XXFM Vacuum Tubes NOS NIB Lot Of Six 1X2B Nonal They have engraved / hot-stamped

They have engraved / hot-stamped bases on is Champion-branded and the other is Zenith

These tubes have tall bases

This lot of four US-made black glass as well as gray glass number / type 57 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

Tube Two probably has a piece of broken glass in it

6 American 7X7 XXFM Vacuum Tubes NOS NIB Lot Of Six 1X2B Nonal They have engraved / hot-stampedThere are six new old stock, new in box US made 7X7 XXFM tubes in this lot. 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