No problem Ron. I get gun-shy at times too with this stuff.
How high does the signal level meter of your tuner rise on a strong local FM station? Dave Gillespie mentions that on the 500-C and 800-C if it does not go over level 4 it indicates one or more IF stages with issues - likely silver mica disease in and IF transformer.
.....
wow, does the FM side ever pull in the stations! I can even receive WUOL - 90.5 MHz from Louisville, a classical music station that should not even reach my area although I can easily receive it in my vehicle and on the 600-T in the living room which has an amplified antenna in the attic. Mind you, WUOL is very weak, but that is still better than any other receiver in the house will do (again, without being connected to the attic amplified antenna). No birdies, just good, clean FM reception.
.....