I have for sale a Tentec Centaur Amp. I have upgraded to the 572B tubes. Runs 500W+ on all bands. Good condition. I am selling because I upgraded to a Centurian and don't need two amps. $625 and I will ship. Certified check, cash or money order please. e-mail is vilbe8 at aol.com or telephone (610) 458-8946. Thanks for reading! 73s, Jim K3WU