4 US-Made 6AB4 Vacuum Tubes Valves NOS NIB Lot Of Four 6972 6976 7370 7572 There were no shorts or

There were no shorts or gas and they tested as follows:

This lot of six Zenith number / type 58 stamped- / engraved-base tubes was tested on our Paul Hart-calibrated TV7/U for shorts

29/26 and 52/46

medium bottles

Tube One measured 30 while Tube Two measured 32 where minimum (65%) is 22 and 100% is 49

4 US-Made 6AB4 Vacuum Tubes Valves NOS NIB Lot Of Four 6972 6976 7370 7572 There were no shorts orThese four US made 6AB4 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 $250 IN VALUE. IF AN