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.
I want to build an AM radio for shortwave reception. I have built regular AM broadcast receivers before, but I don't know what to do to determine the frequency reception range. Is it the number of turns of the antenna coil that determines the frequency range the receiver will receive...
My little AM/FM radio has a 20-24 Pin IC in it that is marked BXL2Y. I can't find this with a search. Anyone know what is it specifically?
Charles Sands
Smyrna, Tennessee
Yes, it is. It is a shortwave receiver circuit. When I build this, shouild I get a specific coil type or can I make my own? The center tapped part has me stumped.
I have a circuit here that seems to have a center-tapped coil. I don't recall that simple coils have center taps. Also, there are three "T" values that I don't understand. I simply need a quick refresher on coils apparently. Since I cannot find a way to include a diagram without an associated...
I received an Eletronics Technician's certification in 1990, but I have been out of the field for many years. I still understand the basics and can design and build simple to moderate circuits. After being out of the field for 15 years or so, I have lost much of intricate information about...
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