Transistorization

Early transistors were not reliable, but this quickly changed, and by 1953 the first significant transistorized instruments for use by the general public were introduced. The world was about to enter an age of miniaturization.
 United States 1953 Transistorization

Early transistors were not reliable, but this quickly changed, and by 1953 the first significant transistorized instruments for use by the general public were introduced. The world was about to enter an age of miniaturization.