Tags » Crystal Radio

High Impedance Headphones? They're In The Can!

likes to build crystal radios. The original crystal radio builders used high impedance headphones. In modern builds, you are as likely to include a powered amplifier to drive a speaker or normal headphones (which are usually around 4 to 16 ohms). 168 more words

Radio Hacks

High Performance Crystal Radio

When you think of a crystal radio, you probably think of something simple maybe built out of household scraps. Not if you are . He recently… 186 more words

Radio Hacks

First Post: An Essay About Radio Waves

This essay is for science; it is about electronics and radio. There are 3 lessons; the first of the three lessons is intro to radio, the second is electromagnet energy and the third is radio waves. 177 more words

Crystal Radio

[TOYS] Pocket Transistor Radios Manufactured During the 1950's & 1960's

Great website focusing on the design and history of pocket transistor radios manufactured between 1954 and 1965.




PhD Crystal Radio has Pizza Capacitor

Crystal radios are old news, but great fun. What would happen if a PhD designed a crystal set? By PhD we mean Pizza Hut Deliveryperson and (who may not actually be a PhD of either kind; we don’t know) gives us a good idea with his… 182 more words

Radio Hacks

Hacking When it Counts: POW Canteen Radios

Of all the horrors visited upon a warrior, being captured by the enemy might count as the worst. With death in combat, the suffering is over, but with internment in a POW camp, untold agonies may await. 1,135 more words

Classic Hacks

Getting Serious about Crystal Radios

The crystal radio is a timeless learning experience, often our first insight into how a radio works. For some of us that childhood fascination never dies. 667 more words