Arcturus 6K8 6K6GT Vacuum Tube NOS NIB July 26 2025 Transconductance measured 53/53 for Tube

Transconductance measured 53/53 for Tube One and 56/56 for Tube Two where minimum (65%) is 50/50 and 100% is 77/77

4 dB (-92 dB is the Maxi-Matcher's noise floor)

pre-oil embargo pressing

Transconductance measured 38/39 for Tube One and 41/35 for Tube Two where minimum (65%) is 34/36 and 100% is 52/55

Arcturus 6K8 6K6GT Vacuum Tube NOS NIB July 26 2025 Transconductance measured 53/53 for TubeThis new old stock, new in box Arcturus 6K8GT 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 UP TO $250 IN