4 US-Made 12SC7 Vacuum Tubes Lot Of Four US-Made NOS NIB THERE WILL BE NO REPLACEMENTS

THERE WILL BE NO REPLACEMENTS FOR LOST PACKAGES OR TUBES THAT FAIL

These eleven US-made number / type 27 tubes tested below the cusp -- some far below

(New US-made 7408s typically test with plate current from the mid-teens to mid-30s with transconductance from 2300 micromhos or so

8 milliamps' plate current / 2170 micromhos

ETSY DOES NOT HAVE A SYSTEM IN PLACE FOR THAT YET

4 US-Made 12SC7 Vacuum Tubes Lot Of Four US-Made NOS NIB THERE WILL BE NO REPLACEMENTSThese four US made 12SC7 tubes tested as follows on our Paul Hart calibrated TV7 U: 27 23, 30 22, 32 38 and 33 36 where minimum (65%) is 25 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 MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100.