https://www.youtube.com/watch?v=GLc_H-7hgIE
I had posted the video on the Facebook QL page and Johan Engdahl wanted to know some details of the board as he wants to recreate it (in a previous post I had already posted the images but no specifics on the parts). The board is pretty simple so I thought I'd post it on the forum for future reference (in case someone here also wants to create one).
I realize if you have a GoldCard there is no need but still nice to capture old hardware. The board does work through resets and power offs, and seems pretty stable. Once, after a QL crash, the clock did reset itself so it's not 100%. But for day-to-day use it works pretty well.
First the pictures (note battery holder removed as I borrowed it for another project, but it's just a button cell one -- I've since put it back as evident in video above):
Top of board with all the diodes/capacitors needed:
Bottom of board:
Parts list as best I can determine:
- ceramic cap is 103
- diode to the right is DT K102
- diode next to blue cap is 1NZ 001 752 (first part could also be 1N with a small 2)
- blue cap says 1047 but seems partially rubbed off
- no marking on diode furthest left