It’s not a one tube radio, but this article from the September 1966 issue of Electronics Illustrated points out that the then-new Field Effect Transistor (FET) was, in many respects, the same as a vacuum tube. So this construction article by Charles Green, W3IKH, deserves a spot in our pantheon.

After explaining the workings of the new device, he provides construction details for the one-FET regenerative receiver. For strong local stations, an indoor 25-foot antenna would prove adequate. For more remote areas, he recommended a good outdoor antenna and ground.

The transistor is a 2N3820, which back in the day sold for $3.75. They’re still available, at a much lower price, on Amazon.

Some links on this site are affiliate links, meaning that this site earns a small commission if you make a purchase after using the link.