Matched Pair RCA 5879 Vacuum Tubes NOS-Testing June 09 2026 new in box US-made 1P5GT

new in box US-made 1P5GT tubes tested to spec on our Hickok 800

IF YOU FEAR DAMAGE OR LOSS OF A PARCEL IN TRANSIT

34/38 and 38/36 where minimum (65%) is 25/25 is 39/39

They tested 54

Matched Pair RCA 5879 Vacuum Tubes NOS-Testing June 09 2026 new in box US-made 1P5GTThis new old stock TESTING, perfectly matched pair of RCA 5879 tubes was tested on our Paul Hart calibrated TV7. for shorts, gas and transconductance. There were no shorts or gas. Both tubes measured 42 where minimum (65%) is 25 and 100% is 35. These tubes have top, O getters; steel support rods and outstanding flashing. 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"