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Testing some cheap electronic modules Some electronic modules are incredibly cheap on eBay. Much cheaper than building it yourself. They could be handy in projects. But how do they perform? Results are mixed, as you'll see below.   One dollar LM386 audio amplifier modules   Two dollar MP3 digital audio player   Ten dollar IC RF oscillator   Disclosure: I receive a small commission from items purchased through links on this site. Items were chosen for likely usefulness and a satisfaction rating of 4/5 or better.

Books by VK3YE Ham Radio Get Started (USA) Australian Ham Radio Handbook (Aust) Hand-carried QRP Antennas More Hand-carried QRP Antennas 99 things you can do with Amateur Radio Getting back into Amateur Radio Minimum QRP Illustrated International Ham Radio Dictionary Make your Passion Pay (ebook writing)   All material on this site (c) Peter Parker VK3YE 1997 - 2024. Material may not be reproduced without permission. Read privacy policy.