Monthly Archives: September 2017

DECstation 5000 Model 240 PSU Failing Under Moderate Load

Posted on September 17, 2017 by rjarratt

The H7878 PSU in my recently acquired DECstation 5000 Model 240 had a shaky start and then stopped working altogether. I found a problem with the input rectifier smoothing capacitors, at least one of them anyway. It was a real job to … Continue reading →

Posted in Retro-Computing | 1 Comment