Gordon Pimblott

Z80 Processor tester

The Z80 processor is a classic microprocessor. Originally designed in the 1970’s variants are still in production, and are widely[…]

Before getting my first ‘proper’ computer I remember having a TV console to play games on. If my memory is[…]

My first Sinclair calculator to add to the collection, is a Sinclair Cambridge from 1973, as with most things from[…]

In my younger days, I was lucky enough to own a BBC B Microcomputer (to give it its full name)[…]

The latest addition to my Sinclair collection is a Sinclair Oxford 200 v1 from 1975. It wasn’t in too bad[…]

After the well-known ‘rubber keyed’ Spectrum came the ZX Spectrum+. I never encountered one during my childhood, probably because they[…]

With both Spectrum’s working, I decided on a few upgrades before calling it a day. Both of the cover plates[…]

On first inspection, the Issue 2 showed a picture with the typical Spectrum coloured border and some flashing bars in[…]

After checking the power rails it was obvious that the 5v regulator wasn’t working, so the first action was to[…]

Over the last couple of months, I have been watching YouTube channels of people fixing various retro computers, mainly Commodore[…]