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KE4EST

KE4EST

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Aug 9, 2004
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I was just wondering the other day, when someone was going put SDR in a stand alone scanner.
 
Comptech

Comptech

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Jun 26, 2006
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Travelers Rest SC
Notice the double asterisks, already $700 and paid upgrade required to get NXDN and DMR plus others. I think I will hold out for awhile with my TRX1.
 
navychop

navychop

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Now, where did I leave that four transistor radio of mine?
 
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gasman882001

gasman882001

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Gosh my Radio Shack Desktop one is still around somewhere!?!?!? wonder if it will even turn on? :)
 
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TheKrell

TheKrell

A mighty and noble race originating on Altair IV.
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Jan 4, 2007
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I remember building one from a kit and later from scratch using a toilet paper core for the coil windings.

Dang harshness, you one-upped me. I never built a crystal radio out of a toilet paper core. :( I did, however, build one from a kit. ;)
 
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primestar31

primestar31

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I built my first crystal radio in a cigar box, when I was 7 years old...
 
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Foxbat

Foxbat

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I built a Tesla Coil from a paper tube that held wrapping paper, does that count? ;)
(not a radio receiver, but it did make a great radio jammer/ozone generator!)
 
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spongella

spongella

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May 12, 2012
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Built one of those "foxhole radios" from a '60's Popular Mechanics way back when. Used a razor blade and pencil lead instead of a germanium diode. Never worked for me though, hi hi.
 
gasman882001

gasman882001

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Jan 13, 2004
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I can still remember as a kid building a crystal radio from a Radio Shack kit and used an alligator clip to connect to the metal part of our rotary phone finger stop, i think it was for power or was that the antenna? wow, that sure dug up an old memory!
 
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harshness

harshness

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May 5, 2007
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Used a razor blade and pencil lead instead of a germanium diode.
Back in my mom's day, they used galena diodes. Half the fun was finding the spots on the crystal that acted as a diode.

220px-CatWhisker.jpg
 
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jayn_j

jayn_j

Press On Regardless
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I made 4 or 5 as an early teen. The crystals were readily available from Olsen Electronics. No power needed, unless you wanted a speaker.
But then I got my HAM license at 13, and had no time for 'fake' radios.
 
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spongella

spongella

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May 12, 2012
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I had an aunt who claimed in the old days she could "hear" a radio station coming out of one of her teeth. Hmmmm.......
 
Scott Greczkowski

Scott Greczkowski

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There was an episode of Gillian’s Island where he was able to pick up radio in his mouth.
 
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harshness

harshness

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May 5, 2007
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I had an aunt who claimed in the old days she could "hear" a radio station coming out of one of her teeth. Hmmmm.......
Back in the day, the material that dental fillings were made from wasn't all that far from germanium or galena. There's still the issue of how you listen to it. The signal would need to be strong enough not to need a tuner or antenna.
 
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TheRatPatrol

TheRatPatrol

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Nov 1, 2004
486
164
Is that a police scanner?

I didn’t think Uniden was still around. I had one of their police scanners and CB radios as a kid.
 

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