 painting the inside silver to block light |
 the main circuit board |
 testing the always-on light mod circuit |
 the always-on light mod uses 4n25 opto-isolators on every LED |
 opto-isolator modules - 2 per disc |
 collections of modules. resistors are matched to LED specs |
 my disc lab |
 guts of my test disc with always-on mode & USB |
 guts of a disc with USB |
 guts of a disc without USB |
 making a new disc holder |
 working on the disc holder details |
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