Por un escritor de hombre misterioso
This transistor radio was made in black, gray, beige, cream or green plastic. The earliest newspaper ads I could find for this radio date to 1960.
Vintage Panasonic Integrated Receiver
Panasonic RF-2200
Page Three - Vision4 Magazine
8 Transistor TR-84 Radio Sony Corporation; Tokyo, build
File:Vintage Sony Transistor Radio, Model 3R-68, AM Band, 8 Transistors, Slide Rule Tuning, Black Case, Measures 1-1 8 W x 4 H x 2-5 8 Inches Deep, Weighs 7.4 Ounces, Made In Japan, Circa 1971 (32579217878).jpg - Wikimedia Commons
Panasonic RF-2200
How many transistors are there per core? - Quora
Favorite vintage audio equipment? - Page 2
Vintage Sony Radio » ISO50 Blog – The Blog of Scott Hansen (Tycho / ISO50)
Transistor Radios Around the World
Mint Vintage 1959 Sony TR-84 Super Sensitive 8 Transistor Radio
Radio receiver - Wikipedia
8 Transistor TR-84 Radio Sony Corporation; Tokyo, build
Vintage Sony TR-84 Super Sensitivity 8 Transistor Radio - 1959 era Sony, Japan
How Music Created Silicon Valley - by Ted Gioia