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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by drewlane

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    3V Amplifier - How'd they do it?

    Does anyone have the plans of a very simple transistor amplifier that I can look at? Preferably, something that runs on 3V. I would need a schematic and parts list at the minimum. Thank you, Drew
  2. D

    3V Amplifier - How'd they do it?

    I built a little audio amplifier last week using the LM386 chip. It works OK as long as I keep the voltage above 6V, but it gets kinda distorted if I try to use voltage below 6V (even though the specs say it will work with 4V). I don't know, maybe the battery is not supplying enough amps at...
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    LM386 Mini Amp

    I finally got this little circuit working, although it took much longer than I expected. It was the lack of "Boucherot" that was causing the problem. I ended up using a 6 volt lithium L544 battery, as it was the smallest I could find with sufficent energy. I would still like to go...
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    LM386 Mini Amp

    I don't really understand what that is. Are those components shown in this diagram: **broken link removed** Regards, Drew[/url]
  5. D

    LM386 Mini Amp

    I'm using a 9 volt battery. I assume you mean don't use a 9V wall wart. BTW, I really want to use a smaller battery. Any suggestions? Got it (although I dont' understand half of it), I can see there are some good examples on p. 5. Thanks! Since my speaker is so tiny. Perhaps I don't...
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    LM386 Mini Amp

    I'm trying to build a tiny mono amplifier with built in speaker. I want this thing to be super small so I can put it in my pocket and use it with my walkman or PDA. I have very little experience with this, and I'm struggling just to read a schematic diagram. :shock: Anyway, I found...

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