Sylvania 9LA6 Vacuum Tube Black Plate NOS NIB

Sylvania 9LA6 Vacuum Tube Black Plate NOS NIBThis new old stock, new in box black plate Sylvania 9LA6 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

The shield walls are very thick and do not appear to be made of lead -- perhaps a lead or bismuth alloy

This matched pair of RCA triple mica 6CL6 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

new in box Lansdale-MANUFACTURED

48 and 48 where minimum (65%) is 30 and 100% is 47

Transconductance measured 30/20

This lot of four Sylvania 12Q7GT tubes tested to spec on our Paul Hart-calibrated TV7/U

This trio of RCA gray glass 12BY7 / 12BY7A tubes was tested on our Paul Hart-calibrated TV7 for shorts

a third mica spacer for increased ruggedness and microphony suppression

This matched pair of silver top Sylvania 6V6GT output tubes was tested on our Maxi-Matcher 2 for shorts

They are all the same size

top D getters and good flashing

This has been the best-sounding LP I played today on Thanksgiving