enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Transistor radio - Wikipedia

   en.wikipedia.org/wiki/Transistor_radio

   The typical portable tube radio of the fifties was about the size and weight of a lunchbox and contained several heavy, non-rechargeable batteries—one or more so-called "A" batteries to heat the tube filaments and a large 45- to 90-volt "B" battery to power the signal circuits. By comparison, the transistor radio could fit in a pocket and ...

3. Boombox - Wikipedia

   en.wikipedia.org/wiki/Boombox

   A boombox is a transistorized portable music player featuring one or two cassette tape players/recorders and AM/FM radio, generally with a carrying handle. Beginning in the mid-1990s, a CD player was often included. [1] Sound is delivered through an amplifier and two or more integrated loudspeakers.

4. Regency TR-1 - Wikipedia

   en.wikipedia.org/wiki/Regency_TR-1

   A 22.5 volt battery provides power, since the only way to get adequate radio frequency performance out of early transistors was to run them close to their collector-to-emitter breakdown voltage. The current drain from this battery is only 4 mA, [ 7 ] allowing 20 to 30 hours of operation, in comparison to only several hours for the portable ...

5. Radio receiver - Wikipedia

   en.wikipedia.org/wiki/Radio_receiver

   Portable radios typically are small enough to be hand held, or, for larger radios, have a handle or carrying strap. Portable radios may have an arrangement for powering from an outlet, conserving the batteries when an outlet is available. Portable "emergency" radios may be solar and/or hand crank powered. [7] Boom box - a portable battery ...

6. List of radios - Wikipedia

   en.wikipedia.org/wiki/List_of_radios

   The RCA model R7 Superette superheterodyne table radio. This is a list of notable radios, which encompasses specific models and brands of radio transmitters, receivers and transceivers, both actively manufactured and defunct, including receivers, two-way radios, citizens band radios, shortwave radios, ham radios, scanners, weather radios and airband and marine VHF radios.

7. 10 Old Tech Gadgets Worth a Pretty Penny Today

   www.aol.com/10-old-tech-gadgets-worth-140005518.html

   As the first portable cassette player, the Walkman transformed the way we listened to music in a pre-Spotify era. Originally priced around $150, refurbished units or those in mint condition can ...