Intermittent failure to boot, sometimes good, sometimes not
I am attempting to resurrect an Apple ][e that has been stoted in a box. It looks fine, no mold, no dampness. It has 2 Apple 5.25 floppies. When I put it away in 1992, it woeked perfectly. The check of motherboard (open apple/closed apple boot gave "system ok"). Sometimes the computer boots with one of either of the drives. It will boot from either PR#6 or 7. The drive spins up and sometimes it "clicks" and reads and sometimes not. It works or not works with either a DOS 3.3 system, ProDos (both original Apple disks) or copies. I can sometimes boot Locksmith, Apple Writer from original or copies. They work and next time they do not. I ran speed test, alignment tests read/write test, and both drives pass. I cleaned heads with alcohol and blew out drives with canned air. I reseated all the memory, reseated the discontroller card, cleaned the contacts. Same results. I stripped the computer down to slot zero Ramworks, 1 drive controller, nothing else. Same results; intermittant boot. Any suggestions?
I am looking for a 5.25 cleaning disk hoping I will not have to make one. I wonder if the read/write head has some iron oxide floating around in that area interferring. Currently in Philadelphia.
I have a large amount of software which I would be happy to share