Sonotone 6AF4 6AF4A Vacuum Tube NOS NIB Tall Base 6364 6660

Sonotone 6AF4 6AF4A Vacuum Tube NOS NIB Tall Base 6364 6660This new old stock, new in box West German manufactured Sonotone 6AF4 6AF4A 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

new in box Sylvania-MANUFACTURED

IN OVER OVER 7000 SALES

100% is 77/77

Their readings are 44

It measured 48 where minimum (65%) is 36 and 100% is 55

new in box RCA 6DA4 tube tested to spec on our Paul Hart-calibrated TV7/U

That song was a monster hit and defined an entire summer if my memory is correct

This matched pair of Sylvania 6X5GT rectifier tubes was tested on our Paul Hart-calibrated TV7/U for shorts

They measured 55/56

I have played them in my Radio Craftsmen RC-2 monoblocks and they are dead quiet when the SACD player is paused and have excellent frequency response

new in box 12SC7s tested to spec on our Paul Hart-calibrated TV7/U

they have side