For pickup: VAX-11/750 and RK07
ethan.dicks at gmail.com
Fri Jun 5 12:46:29 CDT 2009
On Fri, Jun 5, 2009 at 1:27 PM, Henk Gooijen <henk.gooijen at hotmail.com> wrote:
> I have five (!) RK07 drives. I want to keep 3 of them, so sooner or
> later two drives will have to go (in The Netherlands).
> I plan to connect them all to the RK07 Field Test Box to see in what
> shape they are. They should all be OK ...
They probably are... in my experience, they are very sturdy
mechanically and electrically.
I was cleaning and prepping for sale a pair of them about 21 years
ago.. one was just fine, but when I flipped the breaker on the second
one, *huge* amounts of thick black smoke poured out of the PSU. I
slapped the breaker off and tipped back the PSU to see what happened -
two of the rectifier diodes (1N4007 or similar) were charred and
perforated. A few minutes with a DVM narrowed down the problem to a
completely-shorted filter cap. It was great that it was held in with
#8 bolts, not solder. The "hard part" of the repair was replacing the
Lots of smoke + two $0.07 diodes + one C-battery-sized filter cap ==
It was one of the easiest DEC repairs I ever had.
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