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Vintage Portable Radio - 931 items found


Vintage Working Rover AM FM Air PB WB AC/DC Transistor Portable Radio Hong Kong
Transistor Radios
$9.99
Bids: 0
Time Left: 6d 12h 5m
Vintage Zenith Portable Tube Radio Model G-503 Flip Dial
1950-59
$30.00
Bids: 0
Time Left: 4d 11h 31m
VINTAGE WESTINGHOUSE PORTABLE TUBE RADIO - MODEL H-414P4 WITH INSTRUCTIONS CASE
1950-59
$9.99
Bids: 0
Time Left: 6d 4h 12m
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Pre-1949 Motorola Model 5A7A Vintage Portable Tube Radio.

This is the story of Sarah's radio, a 4-tube portable that supposedly cost less than $5.00 when new.

Could a microwave save your electronics during an EMP attack?

20.05.12


Electromagnetic pulses and Faraday cages
If a nuclear bomb is detonated high in Earth's atmosphere, the damage from the blast would not be in the form of vaporized buildings, but in the form of a wide-scale electromagnetic pulse . With the EMP would come a voltage spike that would likely fry most electronics.

Ideally, a Faraday cage would divert the energy from an electromagnetic pulse and prevent damage to the electronics within. Faraday cages are containers made of a conducting material , typically copper or aluminum sheets or mesh, with the conducting material altering the alignment of electrical charges inside to counteract the incoming energy pulse.

Source: io9

Digg Headlines

(1 diggs) COBY TFTV791 7 PORTABLE LCD TV
May 20, 227 from prism34 in Business
prism34 Article by Electronics Reviews at 2011-07-24 02:54:29
Categorized in Satellite Radio,
(1 diggs) ONDA Vintage to Bring Back Old Radio
Apr 03, 2009 from ericsc
ericsc This could knock the socks off iPod and all portable players and maybe bring us back to the good old days of rocking chairs and looking at sunsets from the patio.
(86 diggs) Security Flaws in Feds’ Radios Make for Easy Eavesdropping
Aug 11, 2011 from AngelWardriver in Technology
AngelWardriver Portable radios used by many federal agents have major security flaws that allowed researchers to intercept hundreds of hours of sensitive traffic sent without encryption...
(104 diggs) How to use portable devices’ built-in motion sensors to improve data rates on wireless networks
Apr 12, 2011 from amprather(The Amplifier) in Technology
amprather For most of the 20th century, the paradigm of wireless communication was a radio station with a single high-power transmitter. As long as you were within 20 miles or so of the transmitter, you could pick up the station. With the advent of cell phones, however, and even more so with Wi-Fi, the paradigm became a large number of scattered transmitters with limited range. When a user moves out of one transmitter’s range and into another’s, the network has to perform a “handoff.” And as...
(1 diggs) Portable Radio
Nov 09, 2010 from linkdyrus(USA Link Directory) in Business
linkdyrus GetDigitalRadio com a one stop guide to DAB digital radio digital radio stations digital radios where to buy portable radio a unique postcode based station finder station news updates and in car digital radios