Sylvania 12H6 Vacuum Tube Valve NOS NIB Eightynine

Sylvania 12H6 Vacuum Tube Valve NOS NIB EightynineThis new old stock, new in box GE 6H6 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 UP TO $250 IN

I LISTEN TO THESE TUBES IN TUBE EQUIPMENT

64 and 70 where minimum (65%) is 49

5 record cleaner and then played it on my He-Man Rig which consists of a Rega Planar Three with an Ortofon X5-MC cartridge on an RB-300 tone arm with a Valee PA-12B phono preamp / preamp feeding two ArtSound 805 monoblocks

It measured an absolutely

Tube One measured 76/73 while Tube Two measured 79/72 where minimum (65%) is 50/50 and 100% is 77/77

42 and 44 where minimum (65%) is 25 and 100% is 38

hydrofluoric acid-etched GE provenance dots and excellent flashing

top to bottom) 39

but is fine at all listening levels

Transconductance measured 45 in Section One and 50 in Section Two for Tube One and 50/44 in Tube Two where minimum (65%) is 50/50 and 100% is 77/77

These eleven Philco type 24A mesh plate tubes were tested on our Paul Hart-calibrated TV7/U for shorts

The board and lens comprise one unit