Very Cool ! Are you using the large load resistors to 'trick' the PSU ?
I've done this to PC supplies to run without the motherboard. On Sunday, February 15, 2015 at 4:21:02 PM UTC-6, Bob Bell wrote: > > I have completed the base, backplane and power supply portions of my new > S-100 computer. This will be used for testing purposes, so was designed to > be open and accessible, and I built it on a wooden base. The backplane is > the N8VEM version 2, slightly modified, and the power supply is a MeanWell > QP-200F. > > The MeanWell ps outputs 5V, so I modify and run all my S-100 boards > without the 5V regulator. Hence, the backplane was modified by not > installing the regulator; I just jumpered the input to the output. I > discovered that the orientation of Q1 was incorrect, so that transistor has > to be installed backwards from what the silkscreen shows. And I could not > find resistor arrays with leads long enough to protrude through this overly > thick PCB enough to solder. So, I made my own arrays out of discreet > resistors and some spare protoboard PCB material from another project. As > for the power connector, I utilized a Phoenix Contact screw-terminal > connector. Finally, since the fuses only protect the LEDs, I eliminated > those. > > The large unoccupied area of the base board is drilled and ready to mount > up to 2 full-sized 8" floppy disk drives. > > Photos of this new computer are attached (I hope!) > > Bob Bell > > -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
