Hello: My TR-4C is still not working on any bands. I have the 9 Mhz signal going into the lower SSB 9 mhz filter and nothing coming out. The USB filter does pass the signal ok. So, it looks like I have a bad lower ssb filter. Are they available anywhere? I need some help finding one. There may still be other things wrong with the TR-4C but that is as far as the signal goes now. I would appreciate any help or suggestions. Thanks, Terry, W8NJR
**************Create a Home Theater Like the Pros. Watch the video on AOL Home. (http://home.aol.com/diy/home-improvement-eric-stromer?video=15?ncid=aolhom00030000000001)