Yes, it’s VCFe again! This time we are not represented with an exhibition. But there will be a lecture on Cray-Cyber on Saturday. Generally Saturday, Wolfgang Stief continues his lecture series on Cray with the Cray 3, unconditional recommendation.
Program VCFe 20.0: http://www.vcfe.org/D/VCF.html
Lecture Cray-Cyber: http://www.vcfe.org/D/Vortraege.html#11
Lecture Cray 3: http://www.vcfe.org/D/Vortraege.html#2
VCFe 20.0 http://www.vcfe.org/D
Our 960 covered the room with small pieces of sticky foam. Oli and I removed the acoustic foam from the hood. Now we still have to clean the 960 and our room.
Here are some impressions of the work.
Paul Allen died very suddenly seven days ago.
That was very close to me, although I never met Him personally. I followed his projects like the “living computers museum + labs” with interest and respect.
Our member Gerard van der Grinten was personally on site in Seattle to help with the start-up and repair of the CDC 6500.
The world has lost a great man, he has moved so much.
My condolences to Paul Allen’s family and friends.
We are proud to be represented with the Computermuseum München in the 40th anniversary issue of Chip. Over 6 pages you can learn more about us and our Cyber 960. We would like to thank the Chip for making this possible. More of the magazine chip under www.chip.de, at chip-kiosk.de you can buy it.
Anniversary edition of the chip magazine
Our Cyber 960
We does some tests and find one stuck bit in communication between IOU and memory. Measured the communication channel with modern Lecroy scope.
All variable transformers had to be cleaned, now the power supply is stable again. We tested the currents through the transformers and diodes with the clamp ammeter.
A short video @youtube about the Cyber 960, you can hear the 400Hz and the fans.
Fan repair at the console CC545, we disassembled the engine and greased the bearings. Now we know that a second fan is installed, because the first one is now quiet.
The installation of the cables is completed, now we start troubleshooting.
Many thanks to Jerry, he sent us a new IOU to CPU cable.
Our Cyber CC545 console urgently needed thorough cleaning. The picture tube works at 17500V so we don’t take any risks. The housing has also been repaired.
The IOU transformer had contact problems, we disassembled it and cleaned all contacts and surfaces.
The CDC Cyber 960 is alive, we can access the IOU, but the dead start fails.
Stay tuned!
A lot has happened in the last few weeks:
Here are some impressions:
CDC405, CDC960
The Computermuseum München was invited as an exhibitor at the anniversary of the Computer Magazin Chip on 28.06. With the support of Cray-Cyber we have exhibited 12 computers in operation. It was a colorful mix from PET2001 to iPhone 1, the NeXT cube got a lot of attention, and a C64 invited to play. We thank you for the good organization and felt very comfortable with Chip and the Hacker School. We would be happy to come back and bring a terminal to a real mainframe.
Links:
Focus online
CHIP
The fuses and rails for the 230V distribution have arrived. We can now start with the 230V cabling in our small data center.
