| Author | Views | Views Today | Rank | Comments |
| 48,884 | 28 |   |
45 |
| Author | Views | Views Today | Rank | Comments |
| 48,884 | 28 | |
45 |
| I have received a number of emails regarding schematics for crystal radios. After about the third email, I figured that I may as well put one on my page. So here it is. The circuit is very simple with only 5 parts, but performs very nicely when used with the right size antenna. |
Schematic |
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Notes |
Related Circuits |
Comments |
| If this radio is able to use the energy from the radio waves interacting with the antenna coil for power, is there a way to use this as a free energy device too? Turn this into a small charger for example (Editor's notes: We're only talking a few microamps here.) |
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| Where is the battery or power or it is of without battery? | ||
| Crystal radio's require NO power source. they are able to use the energy from the radio waves interacting with the antenna coil. The germanium diode with it's low forward bias voltage is the ideal device for use in this circuit. | ||
| its not working properly | ||
| where's the supply voltage? | ||
| please help me out with the shematics. i dont get for what is there a extention from c1.is it a coil or has the wira to be completad in a loop? | ||
| I just got done w/ mine. | ||
| am not good in electronics so i want you to help me build a crystal radio | ||
| This is small and good but what is the value of L1 and C1 | ||
| please make a crystal radio design that uses a tuning coil and an adjustable audio amp circuit attached please...thankyou :) | ||
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