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.
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.
Does anyone know where I can find 34 or 36 gauge wire with a coating that can be stripped off with the heat of a soldering iron?
I've tried to use magnet wire but the coating is just too strong for a soldering iron to take off.
I've been told there's some sort of IC chip under this white porcelin looking stuff to control which lights flash and when. Would this just be some sort of a programmed timer IC? If so how do I find one that is so small? This is probably 1/2 the size of a 12c508 if not smaller.
I figured the same thing but this antenna isn't wired to any + or - . There's what looks like a transistor on the board. From that a wire goes down to the antenna base on the phone, so long as that wire is touching the antenna base the LEDs will light up, if that wire is pulled away from the...
I'd like to be able to make some SMT Leds light up through the use of some sort of rf controlled switching. I was looking at a flashing cellular antenna and noticed there is no power connection. It seems to actually be powered by the RF signals coming from the phones antenna. Any idea how I can...
Can anyone tell me what kind of a chip is used to detect signals in the air?
I've figured out that the chip used on the cellphone keypad responds to certain frequencies. So far I've noticed that the LEDs connected to the keypad all have constant power, when the chip picks up the signal it...
I'm trying to get LEDs to flash based on radio waves. Similar to the way a flashing keypad or battery works in a cell phone. When it senses the waves, the LEDs flash. I'm wondering what the chip they use to do this is called and where I can get them.
I've got an SMT Resistor here from a cell phone that says 681 on it. Is there anyway someone can tell me exactly what this is and where I'd be able to purchase them?
So far I've gotten the concept of it controlling the amount of power going to the LED it's connected to. I guess what I'm...
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