I sold off around 5 of BC-474 including one set with bags and generator, but never found one that was not still working. One radio was the "Swedish set". 
I still have one radio to sell. These emails will jog me to get on that. I suggest Dave Stinson's idea to move the  trans lytic cap from cold end to hot end of B+ switch is something you really need to do. As he said, it's really a design error. 
-Hue Miller

Sent from my Galaxy