You sparked memories. Our first ones were Heathkit crystal-based kit radios. And for the youngsters in the forum, kits back then didn't mean plugging things in. It meant breaking out the soldering iron... I don't remember the company name, but we also got kits to make goose down sleeping bags. Sheets of nylon fabric, zippers, and bags of goose down. Messy kit.
I'm so old. Excuse me for a minute. I need to put on sandals and black socks and go yell "GET OFF MY LAWN" at the neighborhood kids.
HEATHKIT! I remember them fondly. They made all the cool stuff. My Grandfather used to build all his stuff in the "shack", which was a washroom cleaned out with a couple of benches and a gutted out tube TV that had shelves filled with code gear and knobs of all sorts. His call was KA6GOU, When he past in 99, I took his call as a "vanity".