I have no affiliation with Mike and Key, but in my opinion this is the best electronics swap meet in the greater Seattle area. I go every year. (If you know of others, post in the comments!)
The Mike and Key flea market will take place on Saturday, March 10th at the Washington State Fairgrounds in Puyallup. Doors open at 9AM (earlier for sellers). I’m looking forward to meeting other PNW electronics and ham radio folks there. I have a seller table again this year so I should be pretty easy to find. I’ll be selling a few kits along with ham radio gear and miscellaneous electronics.
Mike and Key hosts ham radio exams during the swap meet, so if you’re interested in getting a ham radio license this is one opportunity. More details on the event flyer.
This is one of the best amateur radio events in Washington state and one that I look forward to every year. A couple years ago I came home with a working Hameg HM-507 analog+digital oscilloscope (pictured above) for a hundred bucks!
I have a table at the swap meet this year, and I’ll be selling Geiger counter kits, misc. electronics, and amateur radio gear. Look for the MightyOhm banner.