This is a Sinclair ZX Spectrum+ 48k home computer released in 1984.

The Spectrum+ 48k is practically identical to a standard Spectrum 48k, with two differences :

1, The new QL-style case.

2, A reset button.

It has RF output via an RCA on the backside.
But since i want to use composite video, i will have to do a mod. 🙂

The keyboard membrane have been replaced with a new one.

The 7805 +5v power regulator was also changed to a TSR 1-2450 switching regulator that does not generate any heat to keep it cooler.

It works perfectly. 🙂