OT: The Larry Solomon FM Crystal Radio

elektro80

I know this is not directly synth related but I wanted to share this one anyway:

http://solomonsmusic.net/FM_CrystalRadio.html

Solomon says:

Pehr · Posted: Mon Mar 27, 2006 5:33 am Post subject:

Cool!

btw. that saturnus-like thingy is a knob, right? Confused

elektro80 · Posted: Mon Mar 27, 2006 5:48 am Post subject:

Mr. Solomon has the schematics online at his site.

Uh..and the "Holst-object" is a knobbie. Very Happy

elektro80 · Posted: Mon Mar 27, 2006 9:04 am Post subject:

The thing sitting under the "Holst-object" is this guy:

Posted Image, might have been reduced in size. Click Image to view fullscreen.

...which is C2 in Solomon´s schematics..( a 60-80 picofarad variable capacitor)

Wild Zebra · Posted: Tue Mar 28, 2006 8:47 am Post subject:

Cool, I wanted to throw this together awhile back, but haven't gotten around to it. http://sci-toys.com/scitoys/scitoys/radio/radio.html#crystal
Larry's is prettier.

elektro80 · Posted: Tue Mar 28, 2006 8:53 am Post subject:

And Larry´s is an FM radio. Common sense says you cannot make an FM crystal radio. Very Happy

mosc · Posted: Tue Mar 28, 2006 10:08 am Post subject:

mosc · Posted: Tue Mar 28, 2006 10:18 am Post subject:

I've had conventional crystal radios pick up FM radio reception when the signals are very strong. I never got interested in FM using crystal radios because there's not much DX on FM. Laughing

It's a thrill to build your own radio that runs on no power and listen to stations 1000 miles (1600 KM) or more away. Idea

Now you can listen to the streaming audio on the internet, so I guess kids aren't going to find this too much fun. My kids were never interested in crystal radios. I was completely heartbroken. Crying or Very sad