[Sugar-devel] Turtle art crystal radio

[forster at ozonline.com.au]

> Interesting...can you elaborate? (crystal radio was a childhood
> obsession of mine...)
> 
> Sameer

see http://wiki.sugarlabs.org/go/Activities/TurtleArt/Using_Turtle_Art_Sensors#The_XO_as_an_audio_amplifier

I was able to build a crystal radio from XO, wire, cardboard, plastic sheet and foil except for the diode. Wikipedia says that rusty razorblades will produce rectifying junctions but I couldnt make one.

Tony