DO NOT TRY TO CLEAN THE HEADS!!!!
Read the documentation in the cdc and dec sections of bitsavers
on these drives.
3330 style heads fly a LOT lower than RK or RL heads, and they
warn not to try cleaning either the packs or the heads because
it is impossible to get all of the residue off of them.
It would be interesting to find out how the drive makers cleaned the
heads - obviously they had to during the manufacturing process. A secret
sauce of solvents?
Perhaps we should chase down some of the Memorex/CDC/IBM oldtimers.
William Donzelli
aw288(a)osfn.org