Hi, I have some NOS tubes for sale: FM-7F, in origional wooden box ( same as Russian GI-7B),$18/ea,$700 for all. EIMAC 4CX1000A,in paper box,date code:9328 $130/ea;I have one EIMAC 4CX250B:in paper box,date code:9011 and 8432, $130/a pair;I have a pair. Russian GU-74B,$78/ea,I have four piecs.Buyer pay the shipping cost. 73! Hsu