A very fine box ( lemmy.world )
![](https://mbin.grits.dev/media/cache/resolve/entry_thumb/35/7c/357c2ada57ce25459c6e8f32e74994637308d8ddc4cb36486e175d2da46b8bd4.jpg)
If you're old enough you might remember seeing one of these in a drug store, grocery store or even Radio Shack. You could pull all the tubes from your radio or TV, put them in a paper bag, and take them down to your local store to test. And hopefully you wrote down which one came out of which socket. Once you found the bad tube...
https://www.collectorebooks.com/gregg01/Lot-106.htm...
Sci-fi / Physics inspired linocut print. The entire central vertical part is the graphic representation of the famous double split experiment which HiGhTLiGhT the wave / corpuscle duality of light....
cross-posted from: https://lemmy.world/post/17072356...