Matched Pair Sylvania 6AU6 Vacuum Tubes Valves NOS-Testing Swiss-Made

Matched Pair Sylvania 6AU6 Vacuum Tubes Valves NOS-Testing Swiss-MadeThis matched pair of Sylvania 6AU6 tubes was tested on our Hickok 800 for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 2100 micromhos for Tube One and 2175 for Tube Two. (New US made 6AU6s typically test within one standard deviation of 2300 micromhos; minimum (65%) is 1495.) 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"

I playing Easy Star All-Stars' "Dub Side of The Moon" through my Radio Craftsmen RC-2 amplifiers and they sound outstanding

They measured 20/18 and 35/30

new in box matched pair of RCA black plate 6DQ5 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

These tubes are very-well-built and extremely-rugged

Transconductance readings are 30

new in box Sylvania 6V4 / EZ80 rectifier tube tested to spec on Paul Hart-calibrated TV7/U

These ten new old stock

Baldwin-BRANDED and SELECTED 12AU7A / ECC82 dual triode was tested on our Paul Hart-calibrated TV7/U for shorts

nonetheless

CUSTOMS DELAYS CAN ADD WEEKS TO DELIVERIES

It will also be also -- as time becomes available -- on our Paul Hart-calibrated TV7/U for a more-familiar point of reference for most

Both tubes measured 25 where minimum (65%) is 22