Matched Pair Sylvania 6AQ5 Vacuum Tubes Valves Black Glass NOS-Testing December 22 2023 This tube has two additional

This tube has two additional vertical support rods

tell you how the tube sounds

They sound spacious with excellent dynamic range and frequency response on these challenging pieces -- and are dead quiet when the CD player is muted

This RCA 872A rectifier tube is used

where minimum (65%) is 40/40

Matched Pair Sylvania 6AQ5 Vacuum Tubes Valves Black Glass NOS-Testing December 22 2023 This tube has two additionalThis matched pair of Sylvania black glass 6AQ5 output tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 62 while Tube Two measured 62 as well where minimum (65%) is 46. It took two adapters but was worth it as they sounded fine in my Mini 2013. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE