Waveblaster fixed, it was a quick one…
The MC6850 was not outputting any midi signal, swapped it with a “new” one and everything is working fine now.
Luckily I have a stock of 6850 I purchased a few years back when building my own 6502 breadboard computer…
Can all registered uses please login, even just for a few minutes..
It helps build a picture where our "good traffic" is coming from..
Thanks :)
It helps build a picture where our "good traffic" is coming from..
Thanks :)
OJ’s H5C Build
- olivier.jan
- Site sponsor

- Posts: 340
- Joined: Mon Jun 01, 2020 8:00 am
Re: OJ’s H5C Build
Retro stuff
520 STF/ 1040 STE / Mega ST / 2 Mega STE / 2 H5
2 x 600XL with U1MB /SOFIA 2/ AVG CART / and a few 1050
Apple //c, Commodore 128, Mac Classic, SE/30, LC, IIvi and PB G3 (Clamshell)
Amiga 600 and a few 486 and 386.
Many Nintendo G&W and other electronic games from the late 70s/early 80s.
520 STF/ 1040 STE / Mega ST / 2 Mega STE / 2 H5
2 x 600XL with U1MB /SOFIA 2/ AVG CART / and a few 1050
Apple //c, Commodore 128, Mac Classic, SE/30, LC, IIvi and PB G3 (Clamshell)
Amiga 600 and a few 486 and 386.
Many Nintendo G&W and other electronic games from the late 70s/early 80s.
- olivier.jan
- Site sponsor

- Posts: 340
- Joined: Mon Jun 01, 2020 8:00 am
Re: OJ’s H5C Build
Now I need to sort out ROMs, I just realized I might have wrongly named the TOS 206 ROM file as all the burnt ROMs tells me that ST536 ROM can not run on a standard ST…
Luckily it’s only EPROMs, so they are now getting a good sun tan in the eraser….
Luckily it’s only EPROMs, so they are now getting a good sun tan in the eraser….
Retro stuff
520 STF/ 1040 STE / Mega ST / 2 Mega STE / 2 H5
2 x 600XL with U1MB /SOFIA 2/ AVG CART / and a few 1050
Apple //c, Commodore 128, Mac Classic, SE/30, LC, IIvi and PB G3 (Clamshell)
Amiga 600 and a few 486 and 386.
Many Nintendo G&W and other electronic games from the late 70s/early 80s.
520 STF/ 1040 STE / Mega ST / 2 Mega STE / 2 H5
2 x 600XL with U1MB /SOFIA 2/ AVG CART / and a few 1050
Apple //c, Commodore 128, Mac Classic, SE/30, LC, IIvi and PB G3 (Clamshell)
Amiga 600 and a few 486 and 386.
Many Nintendo G&W and other electronic games from the late 70s/early 80s.
Re: OJ’s H5C Build
Thanks for testing that featureolivier.jan wrote: Thu May 08, 2025 5:24 pm I just realized I might have wrongly named the TOS 206 ROM file as all the burnt ROMs tells me that ST536 ROM can not run on a standard ST…![]()
I'll have to rename the version to something else. But it probably get confusing as I think there's few versions already
I suppose 207 or 216 or something...
EDIT: so there's a 207 and 208 already. Maybe I could start at 210....
