General Electric GE 30MB6 Vacuum Tube Valve NOS NIB

General Electric GE 30MB6 Vacuum Tube Valve NOS NIBThis GE 30MB6 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

Transconductance measured 60/55 where minimum (65%) is 60/60

Etsy's crude photo-editing software is the reason

I am playing them as I write in on of my Sound Craftsmen RC-2 monoblock amplifiers with RCA Living Stereo's CD of Bartok's "Concerto For Orchestra

They measured (from top to bottom

These tubes test poorly but should work in many applications

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

This new old stock-testing German Amperex-MANUFACTURED

I am playing them in one my Radio Craftsman RC2 mono blocks as I write with Iggy Pop's "Raw Power" -- the closest I get to Death Metal -- and they sound excellent

and bright

two Hytrons and one Sylvania

on our Paul Hart-calibrated TV7/U where minimum (65%) is 40/40

copper support rods and graphite coatings for even electrostatic charge distribution and