Mastodawn

leadedsolder Jan 21, 2024

Finally got the single-sided #Sanyo MBC-555 to boot MSDOS v2.11, which normally needs a two-sided floppy drive. Next step is to get Kermit on this machine so I can test the serial card I just made for it!

#rs232 #sanyo #mbc550 #mbc555 #retrocomputing #retrocomputers #8088 #kicad

Leaded Solder Jan 9, 2024

I spent a lot of time crimping IDC cables today to finish building my boards. One adapter for the PC-8001 to use floppy drives, and another for the Sanyo MBC-555 to speak RS-232.

Both these boards are going to be open source: let me know if you have either of these machines and I'll send you a spare board if these end up working out when I test them.

#rs232 #retrocomputing #retrocomputers #retrocomputer #sanyo #nec #pc8001 #pc8033 #pc8031 #pc80s31 #mbc550 #mbc555 #sanyombc #floppies #kicad

Leaded Solder Nov 24, 2023

Started making a clone serial adapter board for my #Sanyo MBC-555. Unfortunately, the ribbon cable I cut was a little bit too short to reach the connector on the motherboard. What's the old adage? Measure once, cut three or four times? #retrocomputing #retrocomputer #mbc555 #mbc550 #rs232

leadedsolder Oct 18, 2023

We're getting just that little bit closer to a working open-source RS-232 card for the Sanyo MBC-555. Parts right now are all salvaged from a battery-doomed Hitachi PC, so a small salve on that wound as well.

Just need to build a ribbon cable, and then I can start testing. Uh, that is, if I find some software that uses a serial port for this computer.

#retrocomputing #kicad #rs232 #retrocomputer #sanyo #mbc550 #mbc555

Blake Patterson Jul 21, 2023

Disk image archive and info resource for the Sanyo MBC-550 PC "compatible" from 1982. It's an interesting clone that features better-than-CGA 640x200 resolution 8-color graphics, ending up with a few unique titles, as such.

http://eriscreations.com/index.php/sanyo-mbc-550-vintage-computer-fan-site/sanyo-disk-images/

#DOS #PC #vintagecomputing #retrocomputing #vintagecomputers #gaming #diskimages #Sanyo #MBC550 #Michtron #TimeBandit #CGA