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Recent content by lrecord

  1. lrecord

    Voltage controlled voltage source

    Need to know more about the requirements: - Input voltage? - Input characteristics (DC? AC? Bandwidth?) - Complete isolation required (including grounds)? - How hostile is the environment? - How accurate does the vollower need to be? Regards, Les
  2. lrecord

    Windows 95 system resources decay over time

    I see a lot of Windows bashing going on here, and for obvious reasons it's justified, but a memory leak can be the application's fault as well as the OS. If you kill the suspect application and resources come back to close to normal without having to reboot the OS, then it's an application...
  3. lrecord

    Converting square wave voltages

    The suggestions for using a timer chip are good ones and probably should work, but Skorpio's original circuit should have worked too, at least in concept. The LM393 can handle a differential voltage up to the power supply voltage, and since the target is a 0 to 12V output I assume the 393 is...
  4. lrecord

    UNICAM and FABMASTER FILES

    In general, what data do these two file formats contain and where is it used in the manufacturing process - PCB fab, PCB assembly, or both? I've noticed some assemblers want UNICAM, others want FABMASTER (and a few now want ODB++).

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