vintage semiconductor germanium diode with crystal detector inside welded glass tube

70s anode background black board brown cable cathode circuit closeup colored colorful component contact crystal detail detector device diode disassembled disposal electric electrical electronic electrotechnics electrotechnology element engineering equipment evacuated germanium glass green industrial industry inside insulated insulation junction light macro melted metal nobody nopeople obsolete old orange package part pcb point radio receiver recycling red retro rusty sealed semiconductor sleeve soldered technical technology tin transparent tube vacuum vintage waste white wire yellow