Sylvania 40KD6 Vacuum Tube

Sylvania 40KD6 Vacuum TubeThis Sylvania 40KD6 tube tested 71 on our Paul Hart calibrated TV7 U where minimum is 54 and new is 100. 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

staggered gray plates

but also during World War Two and thereafter when other war contractors needed to fulfill their contracts

solid top mica spacers

5 record cleaner and played on my Rega Planar Three

This new old stock-TESTING matched pair of Sylvania silver top 6K6GT tubes was tested on our Maxi-Matcher tube tester with 325 volts on the plates and a bias of -36 volts for shorts

wire or mica snubbers (for low microphonics) and excellent flashing

7 dB (-92 dB is the Maxi-Matcher's noise floor)

This new old stock-testing Zenith 6K6 / 6K6G tube was tested on our Maxi Matcher II with 325 volts on the plates and a bias of -36 volts for shorts

63-29 188-20 date/EIA codes

This new old stock-testing matched pair of silver top Sylvania 6V6GTA output tubes was tested on our Maxi-Matcher 2 for shorts

These tubes sound outstanding and are dead quiet when the CD player is paused and have excellent frequency response

This matched pair of RCA-MANUFACTURED 5Z4 rectifier tubes were tested on our Paul Hart-calibrated TV7/U for shorts