I rescued an HP-200A audio oscillator from the basement of a relative who’d passed away, thinking it looked interesting. Anyone know if it has any value? I’m guessing it’s nothing too special with a serial number of 30211.
Does it look like the one in the photo on that site? Sounds like a very cool artifact. You can't always tell much from the serial number -- for example, notice that they started their model numbers with '200,' just to make the company look bigger and more reputable.
There are a few HP 200As listed on eBay in the $100-$300 range. Not sure if they're actually selling for that, though.