4 US-Made 12SC7 Vacuum Tubes Lot Of Four ECC82 Noval new in box US-made 2BN4

new in box US-made 2BN4 / 2BN4A tubes tested to spec on our Paul Hart-calibrated TV7/U

This lot of three RCA-Victor gray glass 50L6GT tubes was tested on our Paul Hart-calibrated TV7/U for shorts

top mica spacer and a bottom

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

They have short bases

4 US-Made 12SC7 Vacuum Tubes Lot Of Four ECC82 Noval new in box US-made 2BN4These 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.