On occasion, I will pick up a cheap radio for sale at a yard sale. When I say cheap, I mean something like one dollar US. Sometimes, a radio will even be in a box marked "free". Typically, the radio comes without an owner's manual, batteries, or any kind of indication that it works or not. Sellers are just happy to unload their stuff.
One of the nice things about buying these pigs-in-a-poke radios is that more often than not, they are fully functional. The trouble is usually that the former owner misplaced the manual and has no idea how to make the radio work. The other possibility is that the owner originally bought the radio a pair of radio and lost one of the units.
Having knowledge of radios, a couple of batteries, and willingness to search the Internet for a manual will often turn $1 into a working radio in a few minutes.
Here is an example of a radio (Audiovox GRMS-1353 with NOAA) I picked up at a yard sale for $1 that works perfectly. I found the Adiovox GRMS-1353 Owner's Manual on-line and had the radio pulling in NOAA within a few minutes.
Most of the time, these yard-sale finds are NOAA, FRS, GMRS, or CB radios. Occasionally, a vintage 2m HT will appear in yard sales though at a higher cost. Happy hunting for your next radio bargain,
Good DX and 73, NJ2X