10/18/2026
MILESTONE 10/18/1954: Its introduction was one of the most important events in radio history, not because of its technical performance, but because it fundamentally changed where and how people listened to radio. The effects on programming and formats continue today.
The Regency TR-1 reached stores in November 1954, just in time for the Christmas shopping season. It was developed by Texas Instruments and was the first commercially produced transistor radio and one of the first widely sold transistorized consumer products.
The set wasn't cheap. It sold for $49.95 (about $620 today) but buyers were attracted by something they had never seen before: a radio small enough to fit into a shirt pocket. About 100,000 to 150,000 TR-1s were sold despite their mediocre audio quality.
For the first time, listeners could carry radio with them virtually anywhere. The biggest long-term impact may have been on teenagers. They could listen privately, away from parents and family preferences. The transistor radio became almost a symbol of teenage culture.
One modern analysis noted that the TR-1 ignited the public's appetite for portable devices, a trend that ultimately led to the Sony Walkman, Apple iPod and today's smartphone.