On Wed, 6 Nov 2002, Richard Prosser wrote: > Once you get the new transistors are you going to re-try the origonal > circuit? Nope. I don't think it has any advantage over mine, and mine uses a whole lot fewer parts. The power supply in these particular radios is widely known to be of marginal design. I may add some additional protection but the old parts aren't going back in. I'm also replacing the thermostatic fan control (and probably the fan as well) and running the cooling fan nonstop at a lower speed to reduce noise and keep things more consistently cool. Dale -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.