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Reinhard Heuberger
Info@pdp11gy.com


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Note:

The contents of this website aren't commercial.
All pictures and videos are made by myself.



    About me



A warm welcome to all computer Oldi enthusiasts


With this home page I would like to introduce my projects which I developed exclusively in my leisure time or work on it if the necessary spare time is available. Exchange of experience is very important for me and I am grateful for every suggestion.

One important reason why I do these projects: General, a Hard-Disk has a life cycle but the Software never can die. When the children of our grandchildren are grown up, they should have a memory like the software worked in the period around 1970 - 1985. Among the vintage cars it was similar. The cars were forgotten and rusted. Many cars could not be restored. The remaining cars which have been restored are now a rarity and can only be found in special museum. In the computer area, it is even more complicated because there is Hardware and Software involved. It is critical now, the time is running out. At least 20% of RL cartridges are no longer usable ( too many bad blocks ). It looks much worse in the 8' floppy area, at least 80% are no longer usable. If all of these data should be saved, then it must happen in the next 5-10 years, otherwise all software will be lost forever.
Why I am doing all this things now? Well, it is pure hobby and similar as in the case of the veteran car supporters: One simply must like it. I professionally work in the server-high-tech area and have such a very beautiful compensation in my spare-time if I deal with the old technology. “I simply cannot keep away my fingers from oscilloscope and soldering irons“.

I primarily deal here with the PDP 11 systems and storage systems from Digital Equipment Corporation ( DEC ). Being the time left to traces here . Electrolyte-capacitor in power supplies often have dried out after 20-30 years which may result destroying the whole system if it will be powered up again. It is my primary objective now to replace system components by new technology. This is particularly important at the old Storage systems because the mechanics simply won't work any more and spare parts aren't available. It would be too a pity anyway if this old software is not able to run any more. In the chapter 1. please find all information of my current projects: Replacing a RL02 and MFM disk storage system by new technology with Micro SD-Card and FPGA based on a SoC/HPS environment.