2 RCA 6BH6 Vacuum Tubes Valves NOS NIB Lot Of Two June 30 2023

2 RCA 6BH6 Vacuum Tubes Valves NOS NIB Lot Of Two June 30 2023These two RCA 6BH6 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 ITEM IS

They have 3-13 188-5 and 3-26 188-5 date/provenance codes

AN ELECTRONICS COMPANY THAT NEVER MADE TUBES

Tube One (missing centering pin / keyway): Tube Two:

48 and 51 where minimum (65%) is 32 and 100% is 49

There is a shield between the triodes for reduced cross talk

This lot of six GE 6AC7s was tested on our Paul Hart-calibrated TV7/U for shorts

This hardcover book -- and its dust jacket -- is in very good condition

new in box (for Tube One) matched pair of RCA 6AK5 tubes was tested on our Paul Hart-calibrated TV7/U tester for shorts

It measured an almost-perfectly-balanced 59/57 where minimum (65%) is 40/40 and 100% is 62/62

US-made number / type 89 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

new in box RCA triple mica 9002 tube tested to spec on our Paul Hart-calibrated TV7/U

new in box milspec (US Navy) Raytheon CRP-78 number / type 78 tube tested to spec on our Paul Hart-calibrated TV7/U