3 Zenith 25Z5 Vacuum Tubes Valves NOS NIB Lot Of Three May 28 2025 These six RCA black plate

These six RCA black plate RCA 50B5 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

It measured 38/39 on our TV7/U where minimum (65%) is 32/32 and 100% is 49/49

They have short bases

They measured (from left to right

3 Zenith 25Z5 Vacuum Tubes Valves NOS NIB Lot Of Three May 28 2025 These six RCA black plateThis lot of three new old stock, new in box Zenith 25Z5 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