Roland Huisman
Veteran Member
Hi,
I just started with tiny baby steps to restore a PDP11/20. It is the somewhat newer model with the black case. Once meant for parts, now this Dutch idiot is trying to make it complete and working again. Probably a long way to go... :neutral: For what I know now these things are missing.
- top and bottom covers
- lock switch and wiring
- power cable harness
- fan panel and wiring
I hope some people can help me with some pictures from or information about missing parts.
The top and bottom covers are not really a problem to make, but I'm missing details. I would like to have some info about how the end of the metal sheets are made at the front side.
I think the top cover is bended at 90 degrees. Can anyone confirm this? Of have a picture?
![IMG_20210322_110150.jpg IMG_20210322_110150.jpg](https://forum.vcfed.org/data/attachments/54/54048-e7d0fbf4be619b343b4caa73e4dd95a8.jpg)
And I think the bottom cover is folded back. Can anyone confirm this? Of have a picture?
![IMG_20210322_110128.jpg IMG_20210322_110128.jpg](https://forum.vcfed.org/data/attachments/54/54049-39b9924ae79745d8f998d2bac0e26779.jpg)
The power connectors from the cable harness are G772 boards. I only have a G772B, but this board seems to be a bit higher and has a bit different layout.
This is my G772B
![G772 B.jpg G772 B.jpg](https://forum.vcfed.org/data/attachments/54/54052-1a804e1c02762b30d03a9cfc6cb0f971.jpg)
G772 board which I found on the web.
![G772 example 2.jpg G772 example 2.jpg](https://forum.vcfed.org/data/attachments/54/54051-d4930c4b314568594f0061ea1b909b19.jpg)
Can anyone give a good picture from the front and the back and the size of the G772 board? Then I can make a few replica's.
Another thing which got my attention are these capacitor boards. Does anyone have pictures and/or a model name of them? They don't seem to be in all slots and also not in all machines. To me it seems that these are for the 5V only, because that is the only connected power in the not connected slot.
![capacitor board 2.jpg capacitor board 2.jpg](https://forum.vcfed.org/data/attachments/54/54055-c077485c923098184aafbfdcdc1a4623.jpg)
Thanks in advance!
Roland
I just started with tiny baby steps to restore a PDP11/20. It is the somewhat newer model with the black case. Once meant for parts, now this Dutch idiot is trying to make it complete and working again. Probably a long way to go... :neutral: For what I know now these things are missing.
- top and bottom covers
- lock switch and wiring
- power cable harness
- fan panel and wiring
I hope some people can help me with some pictures from or information about missing parts.
The top and bottom covers are not really a problem to make, but I'm missing details. I would like to have some info about how the end of the metal sheets are made at the front side.
![PDP1120D 06.jpg PDP1120D 06.jpg](https://forum.vcfed.org/data/attachments/54/54047-7fd7fcaa071f795414a39cb405f19e72.jpg)
I think the top cover is bended at 90 degrees. Can anyone confirm this? Of have a picture?
![IMG_20210322_110150.jpg IMG_20210322_110150.jpg](https://forum.vcfed.org/data/attachments/54/54048-e7d0fbf4be619b343b4caa73e4dd95a8.jpg)
And I think the bottom cover is folded back. Can anyone confirm this? Of have a picture?
![IMG_20210322_110128.jpg IMG_20210322_110128.jpg](https://forum.vcfed.org/data/attachments/54/54049-39b9924ae79745d8f998d2bac0e26779.jpg)
The power connectors from the cable harness are G772 boards. I only have a G772B, but this board seems to be a bit higher and has a bit different layout.
This is my G772B
![G772 B.jpg G772 B.jpg](https://forum.vcfed.org/data/attachments/54/54052-1a804e1c02762b30d03a9cfc6cb0f971.jpg)
G772 board which I found on the web.
![G772 example 1.jpg G772 example 1.jpg](https://forum.vcfed.org/data/attachments/54/54050-e1ae56116022579ce28bc8a1d8c11bc1.jpg)
![G772 example 2.jpg G772 example 2.jpg](https://forum.vcfed.org/data/attachments/54/54051-d4930c4b314568594f0061ea1b909b19.jpg)
Can anyone give a good picture from the front and the back and the size of the G772 board? Then I can make a few replica's.
Another thing which got my attention are these capacitor boards. Does anyone have pictures and/or a model name of them? They don't seem to be in all slots and also not in all machines. To me it seems that these are for the 5V only, because that is the only connected power in the not connected slot.
![capacitor board 1.jpg capacitor board 1.jpg](https://forum.vcfed.org/data/attachments/54/54053-ed584a82aeaf1bce1af746a6b546455f.jpg)
![capacitor board 2.jpg capacitor board 2.jpg](https://forum.vcfed.org/data/attachments/54/54055-c077485c923098184aafbfdcdc1a4623.jpg)
Thanks in advance!
Roland