23 Dec
2021
23 Dec
'21
8:43 p.m.
I have a PDP-11/44 system in the DEC 41" high cabinet.
It is designed to be tilted up for service, aided and
supported by two gas struts, one on each side.
Unfortunately, after all these years, the struts have
failed and do not provide any assistance. That box is
heavy!
Does anyone know where I can get replacement gas struts?
Thanks,
Alan Frisbie
24 Dec
24 Dec
2:55 a.m.
Alan asked
I have a PDP-11/44 system in the DEC 41" high
cabinet.
It is designed to be tilted up for service, aided and
supported by two gas struts, one on each side.
Unfortunately, after all these years, the struts have
failed and do not provide any assistance. That box is
heavy!
Does anyone know where I can get replacement gas struts?
No idea about original but if aftermarket is ok:
ebay.com 69,448 results for gas strut
Results could surely be narrowed down if dimensions provided.
Also for a given size they come in different levels of compression
force required.
I have replaced a few here and there, and also had them re-gassed
by a mobile service although that did not really last a long time.
Steve
11:29 a.m.
Like Steve, I don't know about the original application. My own 11/44 project pile has
the slide out and rotate style of slides, to the extent that it has any slides at all.
When I need gas struts and cannot identify a source for exact original replacements, I
usually look at McMaster-Carr first:
https://www.mcmaster.com/gas-struts/
--
Mark J. Blair <nf6x at nf6x.net>
Blog: https://www.nf6x.net
Git: https://gitlab.com/users/NF6X/groups
HECnet: DOGPAK::MBLAIR
Twitter: @nf6x
11:58 a.m.
I have the same system cabinet, but have not looked at it in detail.? I
think from some of the replies, they are thinking about the H960 tall
cabinets and systems that are pulled out, then rotate on the slides.
This I think is? like the hood of a car, then the system tilts up, as
the cabinet isn't that tall that you can't work on it on top.
As to sources, either automotive sources and match the fit, or a
supplier like McMaster Carr.? I don't think any NOS on these would be
any better than the ones? you have that rotted out.
I only just got the 11/44 and didn't poke at it yet, just moved it from
the original owner's storage to mine.
I hope it to be one of my first 'big' projects after some PDP8s are tackled.
thanks
JIm
On 12/23/2021 8:43 PM, Alan Frisbie via cctalk wrote:
I have a PDP-11/44 system in the DEC 41" high
cabinet.
It is designed to be tilted up for service, aided and
supported by two gas struts, one on each side.
Unfortunately, after all these years, the struts have
failed and do not provide any assistance. That box is
heavy!
Does anyone know where I can get replacement gas struts?
Thanks,
Alan Frisbie
12:16 p.m.
Out of curiosity, is there a manual for this style PDP-11/44 online? This is the style I
have, but I?m pretty sure my manual is for the pull-out enclosure.
A manual on this enclosure might give some idea on the gas struts.
Zane
On Dec 24, 2021, at 11:58 AM, jim stephens via cctalk
<cctalk at classiccmp.org> wrote:
I have the same system cabinet, but have not looked at it in detail. I think from some
of the replies, they are thinking about the H960 tall cabinets and systems that are pulled
out, then rotate on the slides.
This I think is like the hood of a car, then the system tilts up, as the cabinet
isn't that tall that you can't work on it on top.
As to sources, either automotive sources and match the fit, or a supplier like McMaster
Carr. I don't think any NOS on these would be any better than the ones you have that
rotted out.
I only just got the 11/44 and didn't poke at it yet, just moved it from the original
owner's storage to mine.
I hope it to be one of my first 'big' projects after some PDP8s are tackled.
thanks
JIm
On 12/23/2021 8:43 PM, Alan Frisbie via cctalk wrote:
I have a PDP-11/44 system in the DEC 41"
high cabinet.
It is designed to be tilted up for service, aided and
supported by two gas struts, one on each side.
Unfortunately, after all these years, the struts have
failed and do not provide any assistance. That box is
heavy!
Does anyone know where I can get replacement gas struts?
Thanks,
Alan Frisbie
12:22 p.m.
There was a Basic four system I had which was a small amount taller but
you get into having to have a really big counterweight.? I could imagine
a smaller amount and the rear placement of the 11/44 Power supply weight
would allow RL02s and such pulled, but leave the system where it is and
raise the lid.
All w/o having gone to look it up, so I'm guessing.? Also the H960 has
small feet that support the weight as well when you pull things for service.
thanks
Jim
On 12/24/2021 12:16 PM, Zane Healy wrote:
Out of curiosity, is there a manual for this style
PDP-11/44 online? This is the style I have, but I?m pretty sure my manual is for the
pull-out enclosure.
A manual on this enclosure might give some idea on the gas struts.
Zane
> On Dec 24, 2021, at 11:58 AM, jim stephens via cctalk <cctalk at
classiccmp.org> wrote:
>
> I have the same system cabinet, but have not looked at it in detail. I think from
some of the replies, they are thinking about the H960 tall cabinets and systems that are
pulled out, then rotate on the slides.
>
> This I think is like the hood of a car, then the system tilts up, as the cabinet
isn't that tall that you can't work on it on top.
>
> As to sources, either automotive sources and match the fit, or a supplier like
McMaster Carr. I don't think any NOS on these would be any better than the ones you
have that rotted out.
>
> I only just got the 11/44 and didn't poke at it yet, just moved it from the
original owner's storage to mine.
>
> I hope it to be one of my first 'big' projects after some PDP8s are tackled.
>
> thanks
> JIm
>
> On 12/23/2021 8:43 PM, Alan Frisbie via cctalk wrote:
>> I have a PDP-11/44 system in the DEC 41" high cabinet.
>> It is designed to be tilted up for service, aided and
>> supported by two gas struts, one on each side.
>>
>> Unfortunately, after all these years, the struts have
>> failed and do not provide any assistance. That box is
>> heavy!
>>
>> Does anyone know where I can get replacement gas struts?
>>
>> Thanks,
>> Alan Frisbie
>>
25 Dec
25 Dec
12:01 a.m.
take them off and take them to a specialized automotoive shop.
On Fri, Dec 24, 2021 at 2:22 PM jim stephens via cctalk <
cctalk at classiccmp.org> wrote:
There was a Basic four system I had which was a small
amount taller but
you get into having to have a really big counterweight. I could imagine
a smaller amount and the rear placement of the 11/44 Power supply weight
would allow RL02s and such pulled, but leave the system where it is and
raise the lid.
All w/o having gone to look it up, so I'm guessing. Also the H960 has
small feet that support the weight as well when you pull things for
service.
thanks
Jim
On 12/24/2021 12:16 PM, Zane Healy wrote:
Out of curiosity, is there a manual for this
style PDP-11/44 online?
This is the style I have, but I?m pretty sure my manual is
for the pull-out
enclosure.
A manual on this enclosure might give some idea on the gas struts.
Zane
> On Dec 24, 2021, at 11:58 AM, jim stephens via cctalk <
cctalk at
classiccmp.org> wrote:
>
> I have the same system cabinet, but have not looked at it in detail. I
think
from some of the replies, they are thinking about the H960 tall
cabinets and systems that are pulled out, then rotate on the slides.
>
> This I think is like the hood of a car, then the system tilts up, as
the
cabinet isn't that tall that you can't work on it on top.
>
> As to sources, either automotive sources and match the fit, or a
supplier like
McMaster Carr. I don't think any NOS on these would be any
better than the ones you have that rotted out.
>
> I only just got the 11/44 and didn't poke at it yet, just moved it from
the original owner's storage to mine.
>
> I hope it to be one of my first 'big' projects after some PDP8s are
tackled.
>
> thanks
> JIm
>
> On 12/23/2021 8:43 PM, Alan Frisbie via cctalk wrote:
>> I have a PDP-11/44 system in the DEC 41" high cabinet.
>> It is designed to be tilted up for service, aided and
>> supported by two gas struts, one on each side.
>>
>> Unfortunately, after all these years, the struts have
>> failed and do not provide any assistance. That box is
>> heavy!
>>
>> Does anyone know where I can get replacement gas struts?
>>
>> Thanks,
>> Alan Frisbie
>>
24 Dec
24 Dec
11:41 p.m.
This would be the "11X44" configuration where the 11/44 is mounted in a 40 inch
top-loading H9642 cabinet ("corp cab").
See http://bitsavers.org/pdf/dec/pdp11/1144/1144_UsersGuide.pdf, Figure 4-5 (page 4-7)
-----Original Message-----
From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of Zane Healy via cctalk
Sent: Friday, December 24, 2021 3:16 PM
To: jim stephens <jwsmail at jwsss.com>; General Discussion: On-Topic and Off-Topic
Posts <cctalk at classiccmp.org>
Subject: Re: PDP-11/44 gas struts
Out of curiosity, is there a manual for this style PDP-11/44 online? This is the style I
have, but I?m pretty sure my manual is for the pull-out enclosure.
A manual on this enclosure might give some idea on the gas struts.
Zane
On Dec 24, 2021, at 11:58 AM, jim stephens via cctalk
<cctalk at classiccmp.org> wrote:
I have the same system cabinet, but have not looked at it in detail. I think from some
of the replies, they are thinking about the H960 tall cabinets and systems that are pulled
out, then rotate on the slides.
This I think is like the hood of a car, then the system tilts up, as the cabinet
isn't that tall that you can't work on it on top.
As to sources, either automotive sources and match the fit, or a supplier like McMaster
Carr. I don't think any NOS on these would be any better than the ones you have that
rotted out.
I only just got the 11/44 and didn't poke at it yet, just moved it from the original
owner's storage to mine.
I hope it to be one of my first 'big' projects after some PDP8s are tackled.
thanks
JIm
On 12/23/2021 8:43 PM, Alan Frisbie via cctalk wrote:
I have a PDP-11/44 system in the DEC 41"
high cabinet.
It is designed to be tilted up for service, aided and supported by
two gas struts, one on each side.
Unfortunately, after all these years, the struts have failed and do
not provide any assistance. That box is heavy!
Does anyone know where I can get replacement gas struts?
Thanks,
Alan Frisbie
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