First post, by Silent Loon
Okay, here it is, my little Midi box:
And that's how it looks inside:
As you can see, it is a Roland MPU-401/AT with a SCB-55 attached in a half-size industrial case. Below is a SSC-5x86HVGA SBC, with a Cyrix 5x86 100Mhz, that I have slowed down to 75Mhz (to keep it cool). Normally the CPU board should stick in the first slot, but the MPU-401/SCB-55 combination is 1 to 2 milimeters to long for the second and third slot..
The SBC contains a DiskOnChip aka FlashDisk modul with 16MB capacity and the OS (DOS).
What is it good for?
Well, it is simply some kind of primitve midi-expander or daughterboard box. I have an Athlon64 system wtih a SB audigy2 card. I can now simply connect the audigy with my midibox and use the original SCB-55 sound within dosbox. Or the original DB50XG sound, or Soundscape DB, or ...
It simply works, and it even works without a display, mouse or keyboard connected. Power consumption is 9W.
Of course I had the idea to build a small dos-only retro box. But unfortunately there are not much devices that fullfill the measurements:
Maximum length is 7 1/2 " ~ 19cm (That's the maximum that could fit in the case.)
I tried the Terratec Gold 16/96 card with ESS1868f chipset, but it didn't want to recognize the daughterboard attached to the wavetable header.
A Soundblaster Vibra 16 fits, but is quite noisy.
What I'm searching for is a small card that has: SBPro support; a wavetable header or wavetable synth, true MPU-401...