Anybody has Control Data (CDC) disk packs for 841 and 844 disk drives to spare with?

Anders Nelson anders.k.nelson at
Tue Jun 6 14:18:02 CDT 2017

Did people actually wash disk packs with water or some electronics-friendly

Anders Nelson

+1 (517) 775-6129

On Jun 6, 2017 11:56 AM, "Paul Koning via cctalk" <cctalk at>

> On Jun 6, 2017, at 2:26 PM, Al Kossow via cctalk <cctalk at>
> On 6/6/17 6:10 AM, Philipp Hachtmann via cctalk wrote:
>> And I have cables and lots of spare heads: All submerged since Saturday.
I most probly won't try to recover the packs
> If they really are that rare you may want to reconsider.

Agreed, and packs from the 2311, RP03, RK05 era are washable.  In fact, I
remember a pack washing machine.  And I remember a 1311 pack (from a 1620)
that had hydraulic oil all over it from an actuator leak; it was cleaned
with isopropyl alcohol, as were the heads, and the result was good as new.
All that was needed for repair was a new gasket and a fluid top-off.


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