9 National Union NU Number Type 27 #27 Vacuum Tubes Lot Of Nine 9 Lot Of Nine Both measured 62 where minimum

Both measured 62 where minimum (65%) is 34

Tube One measured 73/74 while Tube Two measured 78/75 where minimum (65%) is 50/50 and 100% is 77/77

I am listening as I write and this album sounds very good with only an occasional click and pop

THIS IS NOT AMAZON

9 National Union NU Number Type 27 #27 Vacuum Tubes Lot Of Nine 9 Lot Of Nine Both measured 62 where minimumThese nine National Union number type 27 tubes tested as good on our Paul Hart calibrated TV7 U. Transconductance readings are 25, 27, 28, 30, 30, 32, 32, 34 and 35 where minimum (65%) is 25. 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