Mullard 6EC4 6EC4A EY500 Vacuum Tube Valve NOS NIB 1st Quarter BW08 crenelated mica spacers and excellent

crenelated mica spacers and excellent flashing

" "Water In The Lake

Transconductance measured 21

This matched pair of new old stock-testing General Electric / GE 12SN7 12SN7GTA dual triodes was tested on our Jackson 648 Mutual Conductance tester for shorts

There was no gas

Mullard 6EC4 6EC4A EY500 Vacuum Tube Valve NOS NIB 1st Quarter BW08 crenelated mica spacers and excellentThis new old stock, new in box Mullard MANUFACTURED, Sylvania BRANDED 6EC4A EY500 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