Thanks Rick for the info. I just changed the filter in my 512ke and Jason's SE , using the filters from CC_333's dead SE/30 board he sent me.

Man that parts se/30 board he sent me has helped me alot, I have that FPU in my LC520, I used a ram pair to replace a bad pair from another se/30.

i just used a fuse from it to fix another se/30's bad ADB ports. Parts boards are great to have around!