2 Sylvania 3Q5 3Q5GT JANCHS3Q5GT VT-221 Vacuum Tubes Milspec NOS NIB Lot Of Two October 09 2025 They are microphonic and are

They are microphonic and are fine in the preamp stage of my MP-301 and other gentle environments

These three US-made milspec VR-150 / VT-139 / 0D3A tubes tested to spec in our Hickok 800

These four US-made 6AB4 tubes tested to spec on our Paul Hart-calibrated TV7/U

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2 Sylvania 3Q5 3Q5GT JANCHS3Q5GT VT-221 Vacuum Tubes Milspec NOS NIB Lot Of Two October 09 2025 They are microphonic and areThis lot of two new old stock, new in box, milspec Sylvania 3Q5GT JAN CHS 3Q5GT VT 221 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 "LOWTECHELEC" 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