Easy add-on Projects for Spectrum ZX81 & ACE (Redux): Forward

There was a time when plugging a home fabricated electronics project into, onto or out the back of a Computer was an actively encouraged pursuit. Hardware project books for many a micro computer filled bookstore shelves which intern were filled with many a hardware DIY add-on. Easy add-on Projects for the Spectrum ZX81 and Ace, was one such tome of 80s knowledge, and it's been taking filling space on book self for a couple of years. Easy...

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Amstrad NC 100, Don't Blow a Fuse

In the last few days I took delivery of an Amstrad NC 100 notepad computer that had been listed on everybodys favourite auction site as not working. The purchase was an educated gamble as all my prior research on the NC 100, along with helpful advice from the Twitter Sphere, pointed to the major cause of failure for these devices being an easy fix. A simple blown fuse that would probably require replacing or circumventing. After taking...

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The UDG For ZXpand Add-on for the ZX81: Part 1

One of most noticeable graphic element lacking from a ZX81 is perhaps the ability to define said graphic elements. Enter the UDG for ZXpand from Andy Rea, an expansion module available from around mid 2017 that affords the ZX81 owner the opportunity to create User Defined Graphics. The UDG for ZXpand Hardware The UDG for ZXpand is designed to be used in conjunction with memory expansions supporting the WRX extensions / modifications....

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