On 10/26/2018 7:41 PM, Bob Rosenbloom via cctalk wrote:
On 10/26/2018 7:19 PM, Steve Malikoff via cctalk wrote:
William said
One the original PDP-8 ("Straight 8"), the front panel has two aluminum
strips on the sides, one on the left and one on the right. Each
should have
a pair of flathead countersunk screws, likwly Phillips head.
Can someone tell me the exact specs, basically thread, length, head,
and
material of the screws?
I have no idea what the straight eight screws are, but for comparison
the sort of screws in
the PDP-11/05 are things like #6-32 x 1/2 phillips pan head, #10-32 x
5/16 phillips head truss,
#8-32 x 3/8 phillips pan head nyloc, #2-56 x 1/2 phillips pan head,
#4-40 x 3/8 phillips head
flat. And so on it goes.
I read somewhere DEC used a lot of stainless screws but that may not
apply to all of them.
Certainly the cheese head screws that the 11/15's 10-1/2" chassis
pivots on are stainless, I
checked that for curiosity's sake when I machined some special
adapter washers to use with
modern server slides.
At any rate, you have that wondrous (but US only) fastener supplier's
website to help you out.
Steve.
I have four straight-8 panels. All have flat head, stainless (at least
non-magnetic) screws. Three have Philips head screws
and one has slotted head screws. All are 0.38" total length with about
0.28" thread length. Looks to be an 82 degree
countersink.
Bob
I just noticed the three Philips head panels have the plastic front, my
only glass front has the slotted screws.
Bob
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Vintage computers and electronics
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