I have about a dozen or so 1325,1335, and 1355 drives here, also some earlier ones (some have the DEC label) RD50, 51,52, and even a few 54s. If anyone is interested, please contact me off list.
Thanks, Paul On Mon, Sep 20, 2021 at 1:14 AM Chris Zach via cctalk <cctalk@classiccmp.org> wrote: > That is what fixed it, hair dryer blowing around the unit. I stayed away > from the circuit boards and just kept moving to different places. I > thought a head was sticking, but it finally started to move a bit so it > might have been a really gummed bearing. Or #3 head was stuck and > loosened, most of the errors are on that head. > > Running it through the MFM tool got all but 200 or so sectors on the > first pass, most errors were on head 3 but tapered off after cyl 500. > Seems like a normal copy of Accent, no special information so it might > not be worth taking the world apart to get it working. > > Thanks everyone. Back to > > > On 9/20/2021 12:17 AM, Jonathan Stone via cctalk wrote: > > I had suggested a hair-dryer, as recommended circa 20 years ago for > drive "stiction" after disuse. It seems that worked. > > On Sunday, September 19, 2021, 08:58:57 PM PDT, Bill Degnan via > cctalk <cctalk@classiccmp.org> wrote: > > > > I have simply opened and physically moved the disk counter clockwise a > > turn, in a clean dust-free place. Or try putting in an oven on warm for > 3 > > minutes a side, all four sides to loosen the grease. Might sound crazy > but > > these have worked for me before > > Bill > > > > On Sun, Sep 19, 2021, 10:18 PM Zane Healy via cctalk < > cctalk@classiccmp.org> > > wrote: > > > >> 20+ years ago, I remember people talking about disassembling these to > fix > >> the issue. I’ve never tried. Though I have one or two that might > benefit > >> from is. If the CLASSICCMP archives from ’97-2000 are online, I’d > >> recommend running a search against them. > >> > >> Zane > >> > >> > >> > >> > >>> On Sep 19, 2021, at 3:58 PM, Chris Zach via cctalk < > >> cctalk@classiccmp.org> wrote: > >>> Ok, so out of the basement came a Micrapolis 1325 (the old Dec RD53 > >> disk) with what appears to be stuck heads. Rotor tries to move under > power > >> but can only take out slack. Will move backwards a bit. > >>> Is this stuck head, and what would be the best way to free it? The > >> reason I'm asking is this disk had a SA1000 adapter mounted under it so > I > >> am pretty sure it was a PERQ disk. Which means data may be priceless. > And > >> of course it's stuck. > >>> Thoughts? > >>> > >>> CZ > >>> > >> > > >
