How to make a foxhole radio

This has probably been on the internet since WW2, cause the internet has been around for that long... So below is a quick how to build a foxhole radio. I should use my free time today during my holiday and build one. Even though I don't know what to expect I'll hear, maybe some beeps and boops. In all honesty I can see myself doing anything productive today, but don't let that stop you.

might have to right click save this one.

apparently you need a window to make this work...