> >I need a 6AF5G tube to finish restoring a zenith upright. NO AES does not >have any so anyone have one please let me know. >thanks >73 Tony wa4jqs My Rider's tube substitution manual shows 6AD5, 6AE5, 6C5, 6J5 or 6P5 are all good substitutes. 73 Bob WA2UEH