2 Sylvania 12AV7 Vacuum Tubes NOS NIB Lot Of Two Joachim Grubich top O getters and large

top O getters and large anode radiators for cooler operation and extended tube life

There were no shorts or gas and they tested as follows:

I have played it in my Bottlehead Crack headphone amp and it sounds great

64 and 64 where minimum (65%) is 50 and 100% is 77

new in box US-made 6W6GT tubes tested to spec on our Paul Hart-calibrated TV7/U

2 Sylvania 12AV7 Vacuum Tubes NOS NIB Lot Of Two Joachim Grubich top O getters and largeThis pair of new old stock, new in box Sylvania 12AV7 dual triodes tested on our Paul Hart calibrated TV7 U. 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