By Tecknoservice Antique Radio Valve 6BC4 Various Brands New And Used The description of this item has been automatically translated. If you have any questions, please feel free to contact us. GRADES The photos are demonstrative. Used nos and valves All used valves are tested with a Funke W19S tube. All valves used with less than 70% emission are discarded. Important notice. Before making a purchase. Due to many problems found above due to the inappropriate use by customers We feel it, these articles are not guaranteed. Then I do not accept the return. Thank you. . . Due to Recent Problems with Mailing to the UK. All UK Buyers Should Contact Us Before Buying. Thank you. We are sorry for this problem not coming from us. GRADES The photos are demonstrative. Used nos and valves All used valves are tested with a Funke W19S tube. All valves used with less than 70% emission are discarded. Important notice. Before making a purchase. Due to many problems found above due to the inappropriate use by customers We feel it, these articles are not guaranteed. Then I do not accept the return. Thank you. . . Due to Recent Problems with Mailing to the UK. All UK Buyers Should Contact Us Before Buying. Thank you. We are sorry for this problem not coming from us.