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Cake day: July 19th, 2023

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  • The higher amperage rating is not really relevant - that just indicates the max current that the power supply can provide. If the device pulls less than that, it isn’t a problem.

    However, the polarity of the power supply is very relevant. If it’s is the opposite of what the ZX81 needs, and you powered it up, then yes, you may have damaged something.

    The polarity should be shown on the power supply - usually it’s a diagram with three circles which illustrate which part of the connector is positive and which part is negative. There is often times one on the piece of equipment as well. Those diagrams need to match.











  • Glazed over eyes, thinning hairline; Mr. Pringle remembered back to when he first started as mascot all those years ago - life seemed so full of promise. Now he found himself stuck in middle age - his wife doesn’t listen to him anymore, he’s begun dying his graying mustache black. As he stared blankly out from the container, he wondered - can one ever really regain that which has been lost? Mr. Pringle had the experience - he just wished he had the answers…