[philco fan]

hi terry,gary and pete,got back to the 610,before i go on i should have mentioned before that when initially trying radio after tube and filter replacement when i connected antennae to the clip on chassis i got nothing but static,but i connected it to the top of the 6a7 thats when it started to play but only around 1140 a.m. and the same frequency across alot of the band.now that i have explained that maybe the diagnosis will be different .here's what i've done so far in this order,checking results with each step to make sure i didn"t make it worse.replaced part #30-4020 with .05,no change,4989-dg with .1,no change,3903-su with .01disc,no change,33-1096 1meg,measured at 1.4meg,replaced with 1meg.,no change,4989-dg with .1,no change,3793-su.047,spec is .015,no change,30-4170,.1mfd,no change,and 3793-dg.12 ,spec is .015.this last change resulted in a audio hum which i didn't have before. does it matter what kind of caps i use for replacements? do they have to be mica or mylar or whatever else is out there?i'm begining to think i have a antennae problem inside the chassis or some tuner problem. i haven't changed part #4989-fu because i don"t have the right parts. are the parts i put in that don't match spec critical values? any new suggestions are of course appreciated,thanks,phil by the way,gutting the bakelite blocks was easy,took about 10mins. each,thanks for the encouragement.