Pocket Radio

Published: May 10, 2021

Before the transistor was invented, radios used vacuum tubes. Although portable vacuum tube radios were produced, they were typically bulky and heavy. The need for a low voltage high current source to power the filaments of the tubes and high voltage for the anode potential typically required two batteries. Vacuum tubes were also inefficient and fragile compared to transistors and had a limited lifetime.

pocket radio

The pocket size of transistor radios sparked a change in popular music listening habits, allowing people to listen to music anywhere they went. Beginning around 1980, however, cheap AM transistor radios were superseded initially by the boombox and the Sony Walkman, and later on by digitally-based devices with higher audio quality such as portable CD players, personal audio players, MP3 players and (eventually) by smartphones, many of which contain FM radios.

Pocket Radio value and price guide

What's your Pocket Radio worth in 2021? Here are some recently sold items.

Item Title Date Price
general Pocket Watch Chain Fob Swank Pocket Watch Chain Fob Swank 12kgf 06/2021 $ 168.02
general Dress Women s Blue Denim Dress Women S Blue Denim Overall Jumper 05/2021 $ 165.12
general KENT Cigarette POCKET RADIO AM KENT Cigarette POCKET RADIO AM MW 1960S 04/2021 $ 145.35
general Radio Shack TRS 80 PC 2 Pocket Radio Shack TRS 80 PC 2 Pocket Hand Held 05/2021 $ 123.90
general Mexican Wedding Oaxacan Mexican Wedding Oaxacan Multicolor 05/2021 $ 120.83
no pictureSee all sold items on eBay for more prices07/2021-.--

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