On 3 May 2005 23:39:22 GMT, (Michael Black)
put finger to keyboard and composed:


Allodoxaphobia ) writes:
["Followup-To:" header set to sci.electronics.repair.]
On Tue, 03 May 2005 18:04:05 GMT, Gideon wrote:

Franc Zabkar wrote
The voice coil magnet in the Control Data drives of the early 80s was
about 15 x 15 x 15 cm. It was a back breaker. I still have one
somewhere.

==============

Those magnets were 6" x 6" x 6" ? Impressive.

Yep. Easily. I have the voice coil magnets off an old, "small"
DEC 5MB disk drive from the mid-70's.
They are 5x5x2" ( 13x13x6 cm approx.)

Serious magnets, those.

But don't forget the punchline, that the hard drives were massive
back then.

The 300MB drives weighed ~600lb. Years ago a scrap dealer paid me ~$70
for the aluminium deck, and I'm now using the frame as a tool trolley.


- Franc Zabkar
--
Please remove one 's' from my address when replying by email.