Raytheon 6DS4 Nuvistor Vacuum Tube NOS NIB 12F5 Octal

Raytheon 6DS4 Nuvistor Vacuum Tube NOS NIB 12F5 OctalThis new old stock, new in box Raytheon 6DS4 nuvistor tube 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

gas and transconductance

There are two GEs

new in box GE 6AV5GA and 6AV5GT tubes tested to spec on our Paul Hart-calibrated TV7/U

There is also a shield between the triodes for reduced cross talk

it has no gross issues such as hum or microphonics and will work excellently in your audio device that calls for a 12AT7

new in box RCA 1AC5 tube -- and another just like it -- tested to spec on our Paul Hart-calibrated TV7/U

Tube One measured 73 while Tube Two measured 74 where minimum (65%) is 50

but the spine is in fine shape with no loose pages

ETSY DOES NOT HAVE A SYSTEM IN PLACE FOR THAT YET

Tube Three measured 27

These US-made 7AG7s tested to spec on our Paul Hart-calibrated TV7/U

It measured 50/46 where minimum (65%) is 40/40 and 100% is 62/62