A quick thanks to all the folks here who have posted repair tips regarding the Fender Hot Rod amps. I had a friend of a friend bring me his HR Deluxe because it was making popping noises and losing volume. I remembered reading here about some common problems with them. After a quick search and read, I had my answer. Sure enough one of the 470 ohm, 5 watt resistors had a bad solder joint. And every single power tube pin on both sockets had cracked solder joints! Amazing!
So, you may not know it but you helped me out. Thanks!
Dave
So, you may not know it but you helped me out. Thanks!

Dave