I have a very nice R-390A power supply for sale. It is a Stewart-Warner model, Part # SMD 248984, Order # 20139-PC-60-A1-51., SN 4664. It has the two 26Z5W tubes installed and the original tube shields. It works fine and looks very good. Price is $45 plus shipping from 79602. Thanks, Charlie Hugg, K5MBX