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Recent content by jxlbbb

  1. J

    Bad tracking on bench power supply

    Dear all, I get hold on a 30 V 3A dual bench power supply Selectronic SL-1731SB, which seems to be the same as the Velleman PS23023, and may some other ones. Both canals are OK, but when I coupled them in series, the coupling is totally wrong example Tracking not activated : A : 5.4...
  2. J

    Help needed to start a Sony APS-112 670 w power supply

    Thanks Olivier, This is what I suspect, but what would be the amount of load to test, and on which output ? If it happen that someone has a better view than me on this, it may help me not to blow everything with some hazardous tests. Jacques
  3. J

    Help needed to start a Sony APS-112 670 w power supply

    Hello everybody, I saved a Sony APS-112 power supply from a Sun worksation that was discarded. It is a robust PSU providing V1 V2 V3 V4 V5 +3.3V +5.0V +12.0V -12.0V +5SB 90.0A 70.0A 7.0A 0.4A 0.02A It seems to be in proper condition, but I am not able to start it. The description of...
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