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How to Make Crystal Radio Amplifier for Speaker [Project]
posted October 25 2013 12:09.16 by spic0m




How to make an amplifier for a crystal radio that plays it on a loud speaker, like a permanent magnet speaker. This shows the circuit then goes step-by-step through making it on a perfboard. This amplifier circuit is built around the LM386 amplifier chip, and uses various capacitors and resistors. An equivalent part is used for the LM386, the NTE823.


[Link: RimstarOrg]
 
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