i do not have, but if i remember well it was mentioned on the forum, speccy psu is good, just the polarity should be changed.

i do not have, but if i remember well it was mentioned on the forum, speccy psu is good, just the polarity should be changed.

¡NO, please! Spectrum PSUs have the same polarity, Ground at the centre and +9V at the outside ring.

The UK Enterprise came with a 2Amp PSU, and the German one with an 1,3A, as can be seen on this picture:



The gummy Spectrum had a 1A PSU, probably insufficient, but the Spectrum+ and following reincarnations had a better suited PSU that can serve perfectly for an EP.

These days I would generally recommend that people buy a modern high quality 9V 2000ma DC 5.5x2.1mm center-negative switching power supply, rather than use an old transformer-based power supply (like the old Spectrum PSU).

I recommend that you avoid cheap power supplies because they produce a lot of high frequency noise that can mess up sensitive computer circuits, and it is worth paying a little more for something that known to work with sensitive electronics.

Since I am in the USA, I use this, and it looks like the same power supply is available in Italy here.

These are come with right size and polarity plug? Or need to replace it?

It is exactly the right size and polarity plug for the Enterprise (and also a lot of game consoles from the 1980s and early 1990s, which is why I had one around to test).