here is a nicelinear ..it comes with both tubes Eimac 3-500z fully operational. its set for 220v tubes and amp will be package separately and deliver via fed-x and it will be insured. that way we areboth cover in any case. as any vintage equipment like this one sold as is ask question before you offer. pictures are actual as of 9/16/14 tubes are bright. when turn on hv meter at over 300ma you wont be disappointed with this nice amp. please offer with confidence..I amsure that you will be happy and me too I am honest and my reputation on e-bay and anywhere counts...happy offering thank you and good day..