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  • gertk's Avatar
    December 11th, 2018, 08:39 AM
    You can better take a rom cartridge, these often have only one 24 or 28 pin rom/eprom chip, replace that chip for a 24/28 pin socket with a 32k SRAM...
    22 replies | 531 view(s)
  • gertk's Avatar
    December 2nd, 2018, 02:26 AM
    gertk replied to a thread Videotex in Tandy/Radio Shack
    Videotex/Minitel was phased out in 2012 in France: Sames is happening with Teletext (a sort of one way...
    12 replies | 709 view(s)
  • gertk's Avatar
    November 28th, 2018, 09:15 PM
    ATX power supplies have two seperate parts inside: the main power and the standby power. In standby the main power supply is off and only the...
    16 replies | 1190 view(s)
  • gertk's Avatar
    November 28th, 2018, 10:45 AM
    Yes, just switch off the supply at the primary side (mains switch).
    16 replies | 1190 view(s)
  • gertk's Avatar
    November 26th, 2018, 12:04 AM
    If the 520 ST has the TL497 chip on board it does not need the -12V and you can get by with just the +5 and +12 Volt Use sufficient sized wires for...
    16 replies | 1190 view(s)
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About gertk

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About gertk
A long term electronics enthousiast combining old and new
Electronics Computers Cars
Electronics Analyst


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January 26th, 2016
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