Sylvania 5AZ4 Vaccum Tube Valve Rectifier 6PPC2 Gebraucht This is an original recording

This is an original recording from 1939 and it sounds 15-20 years ahead of its time

new in box US-made 6KU8 tubes tested to spec on our Paul Hart-calibrated TV7/U

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

winged plates with one rectangular hole per plate

This matched pair of Sylvania-MANUFACTURED 6K6GT tubes was tested on our Maxi-Matcher 400 volts on the plates and a bias of -36 volts for shorts

Sylvania 5AZ4 Vaccum Tube Valve Rectifier 6PPC2 Gebraucht This is an original recordingThis Sylvania 5AZ4 rectifier tube tested 47 49 on our Paul Hart calibrated TV7 U where minimum (65%) is 40 40. WE HAVE TENS OF THOUSANDS OF VACUUM TUBES IN STOCK. 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. WE HAVE UPDATED OUR TERMS AND CONDITIONS. PLEASE PERUSE THE FOLLOWING: 1. MOST OF THE TUBES WE SELL ARE OVER 70