Hi I just removed INRAD filters from a Kenwood 850sat.
They are #528 500HZ for 455Khz IF
#22 250HZ for 8830 Khz If.
And also a Kenwood Yk-88c-1 250HZ for 8830 IF.
If you are interested ...just send me an e-mail
73
Regards
NOEL ve2ryy