The Plus 1, not surprisingly, is the first in a range of add-ons to expand the Electron. The early ones were brought out by Acorn and this here is my second Electron which came with the Plus 1. I hope you will click on the picture links above to learn more.

This picture set is from 2006, but in November 2020, I re-processed the images from the original set, keeping them at the cropped camera image sizes, so they look a lot better than they did for their first 14 years online!