Crystal Radio with wave trap

a simple crystal radio using 1n34a diode, a 75 ft. L shaped random wire ant. with good ground. Includes a wave trap to help quell the local flame throwers. Plugged into a radio shack mini amplifier.

Category:

Howto & Style

Tags:

• crysta
• radio
• wave
• trap

[G0IFI]

I remember how great my first crystal set sounded through Hi-Z headphones. they're hard to find these days I think. Nice demo anyway.

[cranelift]

I still use hi z phones but need the radio shack amp for the videos. I built a set of piezo phones found on Dave Schmarder's site. I like 'em Even Better

[MrRadionave]

I really enjoyed.

My father made a tuner iron filings. (When I was a child = 41 years back)

Again, congratulations on your excellent work.

[Conlan0215]

We're Gina need this one in the apocalypse

[BADDOOKUS]

This must be how the professor fixed the radio on Gilligans Island

[iskanderoelmann]

@rockymountainradio but it can worK, if in the cascade the diodeof the first resonant circuit is replaced by a <300 pf capacitor, it wont amplifies but increase the Q of the resonant circuit, so it can reject the adjacent radio stations.

[sailorvenussun]

I can finally use those toilet paper rolls I have been saving.

[lilrubberducky2]

Sweet radio would love to make one like it

[fishtankbank]

is it possible to make one without enamel wire?

[nicholasgonzalez]

Hello I am learning electronics and ive built a simple foxhole radio. I amplified the radio signal with two transistors, one using 1.5v and the other using 3v I was just woundering will the output voltage be 4.5v or 3v im not sure and I havent got a voltage meter please help.

[rockymountainradio]

To be honest, I don;t think so, your first crystal radio has of course rectified the incoming signal, so you then have audio, you could run the audio through a cascaded AF amp. but as a crystal radio does not amplify 2 or more radios could not be cascaded to any advantage.

You could try ether constructing a RF amp the output of which would connect to the receiver. or perhaps try an active antenor, (same deal really, latter is just a broadband RF amp in essence)

[obsidian231]

first excuse me for not knowing much of crystal radios which i'm starting to get into. crystal radios need no power like a batt or ect but they lack amplication... is it possible to hook up a series of crystal radios to get enough voltage etc to run an amp to power a separate crystal radio to be able to make it louder instead of using traditional electricity to power it? wondering if this is possible.