Por un escritor de hombre misterioso
First appearing in the 1950s, transistor radios are still available, as shown in a video describing Sony’s ICF-P26 & P27.
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Can a new film help solve Canada's 70-year mystery of vanished US plane?, Canada
Snowden Documents Reveal Scope of Secrets Exposed to China in 2001 Spy Plane Incident - The Intercept
6 Causes of Ringing in the Ear & Preventing Tinnitus
A transistor radio was Bill Ervolino's summertime friend
Service attempt on a 1960s/70s Soundesign 2229 am/fm transistor radio
Plants Use Flowers to Hear the Buzz of Animals - The Atlantic
Transistor radio - Wikipedia
Radio receiver - Wikipedia
File:Advertising For Sony Transistor Radios (TR-6, TR-63 & TR-72) In The Vancouver Sun Newspaper, July 26, 1957 (46264879332).jpg - Wikipedia
92 dB average for 2 years. How fucked am I? : r/headphones