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Old 04-23-2012, 01:27 AM
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madhatter madhatter is offline
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Join Date: Nov 2010
Posts: 457
The crystal radio project is to recover Teluric currents, not hertzian waves. This is why ground is THE most important part of the project.

recovering hertzian waves and magnifying them to power LED's etc.. is nothing new, novel but not what Eric was going for.

Diodes, 1N34A have a very low FW voltage, and a high 50V breakdown. 1N60 is nearly twice as high in forward voltage with a lower 40v breakdown, although the 1N60 is supposedly mfg to higher tolerances.

a ground impedance of 1ohm or less is going to be the biggest and for most an impossible requirement.
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