Mullard RCA 16A8 PCL82 Vacuum Tube NOS NIB Melodiya Stereo They have 56-26 188-4 and

They have 56-26 188-4 and 61-26 188-4 date/provenance codes

smooth round bottom and top mica spacers

(New 6SN7s typically test within a standard deviation of 2600 micromhos

nicely-matched pair of Ken-Rad 6SJ7s was tested on our Paul Hart-calibrated TV7 for shorts

This happens perhaps once -- maybe twice -- per decade

Mullard RCA 16A8 PCL82 Vacuum Tube NOS NIB Melodiya Stereo They have 56-26 188-4 andThis new old stock, new in box Mullard MANUFACTURED, RCA LABELED 16A8 PCL82 tube and two others just like it tested to spec on our Paul Hart calibrated TV7 U. Three of these tubes are available initially in this Dutch Auction. Etsy will indicate how many remain available. 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