3 US-Made 12SF5 12SF5GT Vacuum Tubes NOS NIB Lot Of Three

3 US-Made 12SF5 12SF5GT Vacuum Tubes NOS NIB Lot Of ThreeThese three new old stock, new in box US made 12SF5 12SF5GT 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

It measured 82/91 where minimum (65%) is 50/50 and 100% is 77/77

THERE IS RISK IN LIFE

This pressing has very-light surface noise

It has a mesh plate

I just cleaned this LP set on my VPI 16

It comes as pictured with Twistoflex-style band that was once gold-anodized which has lost most of its color

These four Sylvania 5Z4 rectifier tubes were tested on our Paul Hart-calibrated TV7/U for shorts

56 and 62 where minimum (65%) is 40 and 100% is 62

They measured 35 and 44 where minimum (65%) is 25 and 100% is 38

Selections include "I Go The Road Alone

where minimum (65%) is 40

large shields between triodes to eliminate crosstalk