3 RCA 6GK5 Vacuum Tubes NOS NIB Lot of Three Living Presence

3 RCA 6GK5 Vacuum Tubes NOS NIB Lot of Three Living PresenceThis lot of three new old stock, new in box RCA 6GK5 tubes 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 ITEMS

As you can see

This new old stock-testing Svetlana 6550B / 6P27 perforated plate output tube was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -48 volts for shorts

I misplaced part of the box

new in box black plate CBS-Hytron 6W4GT tested to spec on our Paul Hart-calibrated TV7/U

THERE WILL BE NO REPLACEMENTS FOR LOST PACKAGES

new in box RCA 6JH6 tube tested to spec on our Paul Hart-calibrated TV7/U

One is Wards -branded and the other is Zenith

J-slot Cinch TS102U03 / SOS-6 tube shields fit 12AX7-size tubes nicely

This new old stock-TESTING milspec Sylvania JAN-CHS-5933 / 5933 / 807W / FU7 output tube was tested on our Maxi-Matcher 2 for shorts

There is nothing I can say about this item except that I could not test it

It is dead quiet when the CD player is paused and has excellent frequency response

Transconductance measured 41