When we think of a spark gap radio transmitter, most of us immediately imagine an early twentieth century ship’s radio room or similar. Most of us know these transmitters as the first radio systems, ...

Suppose you traveled back in time—say 40,000 years into the past—and then you got stuck. What would you do? How would you rebuild all the stuff that you like? That's the premise of the book How to ...

In 1896, Marconi successfully covered a distance of about 3 km using electromagnetic waves. A little later, he established radio contact across water between Lavernock Point, South Wales and Flat Holm ...

In many ways, a radio transmitter is a fairly straightforward and basic piece of apparatus. In its simplest form it consists of little more than a source of high-voltage electricity, a connecting ...

Using a spark gap fabricated as part of the conductor pattern of a pc board provides significant protection against ESD damage to an interface circuit. Working with inexpensive passive components, ...

When you think of an old radio it’s possible you imagine a wooden-cased tube radio receiver as clustered around by a 1940s family anxious for news from the front, or maybe even a hefty 19-inch rack ...

What is the most important object in Welsh history? Today Professor Iwan Rhys Morus, from Aberystwyth University, argues the case for a radio transmitter In many ways, a radio transmitter is a fairly ...