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Recent content by APSKAFT

  1. APSKAFT

    Need method to create 640*480 random data @ 60 Hz and update to scr.

    Hi ! Do you think this is quick enough. I think it takes a while to repeat itself. The value for the seed is not really important. /* Generate pseudo randon numbers for video: */ #define MAX_PIX 256 static double seed = 0.6287393495854736252536643784327L; /*... */ int pixle...
  2. APSKAFT

    SCR GEQ CR81 ?

    Hi, I have not found any name or number on the unit itself. The door and sides are missing. The AC to DC transformer is marked 7.8 kVA, and it is Swedish, i.e. where I live. I did not find the transformer company Axel Åkerssson, but I think that will not take too much time. The GEQ CR81 M06...
  3. APSKAFT

    SCR GEQ CR81 ?

    Thanks for the suggestions. I don't know the brand of the complete unit, but the transformers for the DC to AC part were from France.
  4. APSKAFT

    SCR GEQ CR81 ?

    I have acquired a surplus UPS where the AC to DC part consists of a 3 phase transformer and a rectifier bridge consisting of 3 SCRs and 3 diodes. The PCB for the trigging electronics is missing and I have to make a new one. I need to get hold of the data sheet for the SCR but have not had any...
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