Zenith 7L7 Vacuum Tube NOS NIB

Zenith 7L7 Vacuum Tube NOS NIBThis new old stock, new in box Zenith 7L7 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

7 milliamps

Tube Two Transconductance: 2750

OEM-BRANDED 6K6GT tubes were tested on our Maxi Matcher 2 with 400 volts on the plates and a bias of --48 volts for shorts

1 milliamps

It measured 42 in its triode section where minimum (65%) is 25 and 100% is 39

Raytheon CK1122 Raysistor Control Circuit

52/48 and 52/52 where minimum on the TV 7 (65%) is 38/38

These three 12A8GT tubes were tested for shorts

They are a tad microphonic and are fine for home use

64 and 72 where minimum (65%) is 45 and 100% is 69

This trio of Majestic Mesh plate globe G-24s was tested on our Jackson 648 for shorts

These shields are 46 MM high with the top 33 MM encased in lead approximately 2