2 General Electric GE 6JF6 Vacuum Tubes Valves NOS NIB Lot Of Two Symphony Orchestra new in box GE 1821A

new in box GE 1821A / Z-1879A is still sealed in its plastic baggie

These three GE GE 5-Star industrial 6265 tubes tested to spec on our Paul Hart-calibrated TV7/U

I have played them in my Sound Craftsmen RC-2 monoblock amplifiers with adapters (not included) and they sounded outstanding

Transconductance was 1890 for Tube One and 2000 for Tube Two where new/nominal is within one standard deviation of 1900

70/79 and 75/76 where minimum (65%) is 50/50 and 100% is 77/77

2 General Electric GE 6JF6 Vacuum Tubes Valves NOS NIB Lot Of Two Symphony Orchestra new in box GE 1821AThese two new old stock, new in box GE 6JF6 tubes tested to spec 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 UP TO