[The Philpott]

It's now obligatory to have a clown, I suppose to widen the audience to include more 'divs'. I do learn things watching TRS, and this it what makes it appeal to me.

Fran Blanche has issued a new YT video that is much more our sort of thing, featuring a Heath-Robinson pseudo-digital alpha-numeric display module by IEE called a Bina-View.
A filament lamp and some solenoids at the rear, and a series of unique chequer-pierced plates at the front. These were selectively manipulated by a tiny amount to project the desired number, letter or character on the diffuser screen at the front. I'm not quite sure what they were thinking, but to modern eyes it looks like the work of someone unhinged- they certainly could have been once they had finished making a working prototype!

Once you see it you'll fully understand why it's inherently unreliable.

Dave