Stripping an RA80
ard.p850ug1 at gmail.com
Sat Dec 31 11:26:50 CST 2016
I am probably going to be flamed for this....
My VAX11/730 has an R80 disk drive as you might expect. I dismantled this many
years ago to move it and never reassembled it. Over the years (in
a house move), the smaller parts (screws, the brackets and clevis pins for the
gas struts, and ribbon cables) have got lost.
A friend of mine (Philip) was having a clearout and gave me an RA80
of course). I don't run SDI drives anywhere (I think I have a UDA50 somewhere),
but a lot of parts are the same as in the R80.
My first thought is to strip this RA80 (that's why I got it!). This
will provide me
with most of the missing parts (all that I would have to make is the
26 way ribbon
to the controller cable -- the 60 way one is still in the R80 chassis). So after
stripping I think I would be left with 4 classes of part :
1) Those I need for the R80 -- brackets, screws cables, etc
2) Those that could be useful spares for the R80 :
Microprocessor PCB (the ROMs are different, of course, but the the
PCB is the same and could be a source of components. I don't swap boards
AC and DC power harnesses
3) Those that are of no use in the R80, but are not too hard to store
4) Those that I don't need and which are a pain to store
Is there any reason to keep the bare, stripped, chassis, or should I let it go
as scrap metal?
Does anyone run an RA80 and think any of the bits in list 3 (certainly) or 2
(I may want to keep these, in particular the HDA if it's good) are useful to
them? Of course I don't know if the parts are still good.
Or should I preserve the RA80 as it is, and just use it as patterns for the
missing bits. Try to find a source of the UNC screws, make up the cables,
make up brackets, etc. I would only do that if there is a very good reason.
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