General Electric GE 30MB6 Vacuum Tube Valve NOS NIB US-Made 6CZ5 because of convoluted trade policies

because of convoluted trade policies

They measured 55/46

(New 12AT7s / ECC81 typically test within 1

but I do not know its operating voltage

One is an early 1X2

General Electric GE 30MB6 Vacuum Tube Valve NOS NIB US-Made 6CZ5 because of convoluted trade policiesThis 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