10-30-2009, 11:24 PM
I have a Philco 48-482 code 121 that the tube layout has a 7B6 in place of a 6sq7...The tube that is in the rado is a 7B6 and the layout shows a 7B6.All the Schemetic info I have found on this radio show a 6SQ7 there.Was there a production change or something and where can I get a schemetic that has the 7B6????Thanks in advance....