the hard key Sinclair ZX Spectrum + (Plus) with 48k of RAM and black case.the rubber key Sinclair ZX Spectrum with 48k of RAM.the rubber key Sinclair ZX Spectrum with 16k of RAM.This article talks about the first Spectrums of the Sinclair era. The Spectrum ranges from the rubber key 16k and 48k models during the Sinclair ownership of the Spectrum brand, as shown in the photo above, through the Amstrad ownership of the Spectrum brand (after Alan Sugar’s Amstrad bought the rights to the Sinclair Computer brand), to the present with the new Spectrum Next. Power Supply for Rubber Key and Plus Types of Sinclair ZX Spectrum The Sinclair UK1400 PSUs for the 16k, 48k and Spectrum Plus are interchangeable. So it follows that there are several different types of power supplies for the Sinclair ZX Spectrum. The Spectrum Plus is simply a new case for the same PCB as the 16k and 48k rubber key Spectrum. There are several types of Sinclair ZX Spectrum.

I have games, joysticks, interfaces and more and will happily put a bundle together for you. These machines are sold directly if you use the Contact details here or via the PopeyMon eBay shop. Another example of a 16k Spectrum is shown in this article here. PopeyMon has refurbished and sold many Spectrums of all types. The heat sink has been removed, because the original 7805 regulator and Sinclair power circuit and supply design was the source of most of the excess heat.

It is also installed with new, quality Vishay electrolytic capacitors and a modern switched voltage regulator. This Printed Circuit Board (PCB) was repaired, refurbished and enhanced by PopeyMon Games and Fun, including the DC-DC Mod that makes the power supply circuit more reliable. A Sinclair ZX Spectrum Issue 3B with DC-DC Circuit ModificationĪbove is the inside of a Sinclair ZX Spectrum, the Spectrum Plus.

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