Zaerix 6CU7 ECH42 Vacuum Tube NOS NIB 6EH4 NOS NIB This new old stock-testing matched

This new old stock-testing matched pair of Ken-Rad-MANUFACTURED

It may be for It may be for a Big Crown 7551 or some of the Pointer date models

Or maybe not

There were no shorts or gas and they measured as follows:

These ten Sylvania 29LE6s tested to spec on our Paul Hart-calibrated TV7/U

Zaerix 6CU7 ECH42 Vacuum Tube NOS NIB 6EH4 NOS NIB This new old stock-testing matchedThis Zaerix 6CU7 ECH42 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