Raytheon 6BL8 ECF80 Vacuum Tube NOS NIB From Fantasiestucke These tubes have acid-etched codes

These tubes have acid-etched codes and designations as well as silk-screened 67-05 67-22 188-5 and 68-26 188-5 67-50 production run/provenance codes

top D getters and anode radiators for cooler operation and extended life

I misplaced part of the box

The diodes measured 56 and 56

These seven 6A6 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

Raytheon 6BL8 ECF80 Vacuum Tube NOS NIB From Fantasiestucke These tubes have acid-etched codesThis new old stock, new in box Raytheon 6BL8 ECF80 tube tested to spec on our Paul Hart calibrated TV7 U. It was made in Japan. 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