Hi Beside,that is a real beauty!I have one that I found on a rainy day about 10 years ago on a road trip that led me to a little town,Milo Maine.It remided me of Mayberry(Andy,Opie,ect).Mine is a Telefunkin Concereto that looks almost simular,but had two more speakers,2 on the side,making 4.It has Bakelite controls too,4 tones called solo,bass,jazz,an orgestra.It uses a magic (eye tube) like the Dyna FM-3.When I first fired it up I warmed it up slowly on a variovac and experianced the same kind of tonality you did.I let it sit as a decoration though I don't know why.I fired it up a few weeks ago without the variac to bring the caps up.Baldrick was right on!I had a grounded plug outlet supposedly,and the power cord was not.It fit into those 2 little holes like in the center back of your unit.The FM came on,but the connection did not look snug.As my shakey hand went to plug it in better it fell out and a big flash went off as well as all the power to my tiny apt.I was lucky I didn't get zapped.I hope I didn't destroy the whole radio,but it went back to the decoration state for now.If any one can explain what happened with what I said,I would love to know.Listen to Baldrick and Good Luck!....Mark Korda (mark.korda@myfairpoint.net)