Cunningham 6SA7 Vacuum Tube NOS NIB

Cunningham 6SA7 Vacuum Tube NOS NIBThis Cunningham 6SA7 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 VALUE. IF AN ITEM

engraved base number 78 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

They measured (from left to right) 46

They measured 46/53

8 milliamps' plate current / 1150 micromhos

This new old stock-TESTING matched pair of RCA 6SN7GTB dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

This lot of six RCA 6GH8A tubes tested to spec on our Paul Hart-calibrated TV7/U

Transconductance measured 64 in Section One and 64 in Section Two for Tube One and 68/68 in Tube Two where minimum (65%) is 50/50 and 100% is 77/77

new in box Sylvania Number 37 tube tested to spec on our Paul Hart-calibrated TV7/U

These nine National Union number / type 27 tubes tested as good on our Paul Hart-calibrated TV7/U

5 record cleaner and then played it on my He-Man Rig which consists of a Rega Planar

Hopefully there will no shorts or gas

THE PRODUCT DEVELOPMENT AND IMPROVEMENT CYCLE IS OV