6 US-Made Number / Type 89 #89 Vacuum Tubes Valves Lot Of Six NOS-Testing 4 Lot Of Four new in box Sylvania 14C5

new in box Sylvania 14C5 tubes tested to spec on our Paul Hart-calibrated TV7/U

They are dead quiet when the SACD player is muted but are not recommended for this amp -- which was designed for 6SN7s -- as they not only break up early

This lot of three RCA Milspec 6B8 / VT-93 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

This pressing has light surface noise audible in quiet passages and barely-audible in voice-level passages

035 and 226 date codes

6 US-Made Number / Type 89 #89 Vacuum Tubes Valves Lot Of Six NOS-Testing 4 Lot Of Four new in box Sylvania 14C5These six new old stock testing, US made number type 89 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Thery measured as follows where minimum (65%) is 39: 52, 54, 56, 57, 60 and 62. 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