How A Cryistal Radio Works Videos
UC News

How a Crystal Radio Works

Full details of how a crystal radio works, right down to the electron level. We start with a demonstration of all the parts in action, showing how the radio waves ...

UC News

How a Crystal Radio Set Works

Discover how a crystal set radio works and some of the hints and tips in building them. Crystal radios were used in the early days of radio broadcasting.

UC News

How to Make/Build a Crystal Radio

Step-by-step instructions for making a tunable crystal radio. This is a radio that gets its power from the radio waves. I made it almost entirely from junk except for ...

UC News

Crystal Radio - No Batteries, No External Power

Robust crystal radio. DIY step by step on how to make it. No special tools or skills needed. Most parts can be had from recycled things. The purchased parts run ...

UC News

Portable Crystal Radio using Loop Antenna and Pizza Box

How to make a portable crystal radio using a loop antenna coil and all inside a pizza box. No ground connection or long antenna needed. I go step-by-step into ...

UC News

Make Razor Blade Diode for Crystal Radio/Foxhole Radio

How to make a razor blade diode for a crystal radio/foxhole radio. This involves using a pencil and a slightly modified razor blade to make a diode to use in place ...

UC News

How to Make Crystal Radio Amplifier for Speaker

How to make an amplifier for a crystal radio that plays it on a loud speaker, like a permanent magnet speaker. This shows the circuit then goes step-by-step ...

UC News

Crystal Radio Kit - your cellphone receiver's grandad

Unboxing and assembling a forty year old Crystal Radio Kit made in USA (1975) to show the basic components of a radio tuner / receiver and explain how they ...

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