Ben's Hobbies

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Ben's Hobbies

Archives

2013
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2012
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  - Repairing a Disciple disk interface: using GAL's instead of PAL's
    05/17/12
    This week I did some work on a Disciple disk interface which I got from Ruud Baltissen on the last retro computer fair in Maarssen.
    
    It caused a ZX Spectrum not to boot, with garbage on screen etc.
    
    I immediately suspected a PAL chip to be the problem.
    
    I know from the
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