My Yodobashi (Microvoice) Formula-1, with build-in eprom programmer

Vintage Computing

This is a *very* nice portable CP/M computer, really rare and perhaps unknown for many, but still worth to be mentioned. It has a Z80 CPU running at 4 MHz, has a build-in eprom programmer (up to 27128) and, like many other CP/M computer, 64KB RAM. It has two 40 track double sided floppy drives (~ 346KB capacity + system tracks), and it has even an external connector for 8 inch floppy drives (the standard IBM format with 77 tracks is used).

Also, it has an integrated thermo paper printer (no chance to get such thermo paper rolls anymore).
Although it’s screen is only 5.5″ sized, it has a really clear and crisp display:

3 thoughts on “My Yodobashi (Microvoice) Formula-1, with build-in eprom programmer

  1. Hi!
    I have just became the happy onwer of a Yodabashi Formula-1 machine. It looks very, very nice, and it even boots. But it gets stuck at ‚IPL error!“ while accessing the upper floppy drive. I reckon it is looking for its CP/M boot disk. But, I don’t have any boot software. I do have 5.25″ floppy disks and drives to write with, but I don’t have any CP/M software. Is it really necessary to run the CP/M Formula-1 branded version? Or will *any* CP/M 2.2 version do? or, even better, do you have a version available for download?
    I will write at http://www.legacyman.nl aboutu it soon, I just received a lot of old stuff. A Kaypro II is also in my collection now, but I haven’t tested it yet. I found a CP/M Kaypro II version at winworldpc.com, will try that.
    Many thanks in advance for your response!
    Kind regards,
    Robbert, the Netherlands.

  2. Hi!
    I have just became the happy onwer of a Yodabashi Formula-1 machine. It looks very, very nice, and it even boots. But it gets stuck at ‚IPL error!“ while accessing the upper floppy drive. I reckon it is looking for its CP/M boot disk. But, I don’t have any boot software. I do have 5.25″ floppy disks and drives to write with, but I don’t have any CP/M software. Is it really necessary to run the CP/M Formula-1 branded version? Or will *any* CP/M 2.2 version do? or, even better, do you have a version available for download?
    I will write at http://www.legacyman.nl aboutu it soon, I just received a lot of old stuff. A Kaypro II is also in my collection now, but I haven’t tested it yet. I found a CP/M Kaypro II version at winworldpc.com, will try that.
    Many thanks in advance for your response!
    Kind regards,
    Robbert, the Netherlands.

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