u/Mr_Courgette6275

Image 1 — My radioactive vacuum tube uses radium lume.
Image 2 — My radioactive vacuum tube uses radium lume.
Image 3 — My radioactive vacuum tube uses radium lume.
Image 4 — My radioactive vacuum tube uses radium lume.

My radioactive vacuum tube uses radium lume.

I recently picked up this radioactive vacuum tube, I couldn't find what isotope it used online but I deduced it wasn't a gas since it's more radioactive at one end than the other. Today I was shining my UV light on it, for some reason, and I noticed some fluorescent dust at the bottom, upon closer inspection it turns out there's just a blob of radium lume on the cathode.

u/Mr_Courgette6275 — 5 days ago
▲ 37 r/Radium

My radioactive vacuum tube uses radium lume.

I recently picked up this radioactive vacuum tube, I couldn't find what isotope it used online but I deduced it wasn't a gas since it's more radioactive at one end than the other. Today I was shining my UV light on it, for some reason, and I noticed some fluorescent dust at the bottom, upon closer inspection it turns out there's just a blob of radium lume on the cathode.

u/Mr_Courgette6275 — 5 days ago
▲ 15 r/clocks

Where to get parts ?

My mother recently found this when going through some stuff, I believe it belonged to my great grandfather.

Unfortunately the hairspring was broken and mostly missing but I do have a tiny piece that could be measured. I initially thought the balance wheel was ok but I now think that the tips of the axle are broken. The rest of the movement seems alright, it can be wound and the hands advance if I manually move the escapement.

Does anyone know where, if it's ever possible, to get parts for this (I'm in France by the way)

u/Mr_Courgette6275 — 7 days ago
▲ 16 r/clocks

How old?

I got this today and the movement especially looks really new, how old do you think it is?

u/Mr_Courgette6275 — 14 days ago
▲ 16 r/Radium

Late radium ?

I got this clock today and it's got radium lume, but especially looking at the movement, it looks relatively recent. So how old do you think it is?

u/Mr_Courgette6275 — 14 days ago

There's this trefoil on the door to the Emmaüs in Caen (14) (Emmaüs is a french charitable organisation that takes donations of used stuff and sells it in their shops). Does anyone have any idea why it could be there ? I initially thought it could have been from a previous use of the building but that building has been Emmaüs since at least 2008, and the sign looks newer than that.

u/Mr_Courgette6275 — 15 days ago
▲ 30 r/Marbles+1 crossposts

Scanned my light over a big box of marbles and saw a flash of green so I went through the whole box and came home with 29, for 2€. Most are in pretty good condition, one has a big chip and a few have some small ones.

u/Mr_Courgette6275 — 21 days ago