Raytheon 30KD6 Vacuum Tube NOS NIB

Raytheon 30KD6 Vacuum Tube NOS NIBThis Raytheon 30KD6 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 ITEMS UP TO $250 IN VALUE. IF AN ITEM IS

The performance is excellent and heart-felt

This trio of RCA 6K7 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

Tube One: 20 milliamps' plate current

74 and 78 where minimum (65%) is 58

It measured 49/47 where minimum (65%) is 40/40 and 100% is 62/62

This new old stock-testing pair of US-made 6BG6GA output tubes was tested on our Maxi-Matcher with 400 volts on the plates and a bias of -48 volts for shorts

51/50 and 51/51

new in box Raytheon 6BH6 tubes tested to spec on our Paul Hart-calibrated TV7/U

Thes three new old stock

This lot of six Zenith number / type 58 stamped- / engraved-base tubes was tested on our Paul Hart-calibrated TV7/U for shorts

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

This new old stock-testing 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