Tag Archives: Power

Refurbishing a 48K Rubber Keyed Sinclair ZX Spectrum – Pt.2 Replacing the Regulator

Posted on August 24, 2017 by admin

The poor 7805 in any Sinclair Spectrum always works really hard. It was probably the best solution when the machine was designed but things have moved on. Switch-mode technology has improved and reduced in size. Therefore, when refurbishing any Sinclair … Continue reading →

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Universal Regulator Board

Posted on August 13, 2015 by admin

I have just published my design for a Universal Regulator Board in the Non-AVR Projects section. The idea behind it was that I was using much the same power supply for the majority of my projects, a 7805 and associated … Continue reading →

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UV Exposure

Posted on April 10, 2013 by admin

The next step I had to take was to obtain or create a UV Exposure box. I had already had experience with one due to another interest but that model, while easily up to the task, was prohibitively expensive. I … Continue reading →

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