1-Transistor Radio
1-Transistor Radio
At age 14, Steve Hines built a 1-transistor radio using the schematic in Radio-TV Experimenter magazine, and packaged it to make it practical to carry, worked out the printed circuit pattern to minimize cross overs, and etched a printed circuit by painting the design, using a chemical resist, with a small artist's brush and chemically etching away the copper. Then holes were drilled, and parts were mounted and inserted into a red plastic cigarette case. Tuning was done by threading the ferrite core in and out of a coil capacitor. There was no volume adjustment. It was very exciting, as a 14 year old, to tune in a station 450 miles away on a radio that you made yourself. The design and parts were crude by today's integrated-circuit standards, but lent themselves to experimenting and learning electronics.
This is not a product being offered for sale to end users. Contact Steve Hines with questions: