serious coinage
- Mar 26, 2011
- 13
- Joined
- Mar 26, 2011
- Messages
- 13
For an electronics project, I have been looking to build an FM radio. I have been researching and have a reasonably good understanding of the principles behind it, and have found several circuit designs. At first I was researching superheterodyne receivers which seemed quite interesting but the only circuits I was able to find where ones based on an IC instead of discrete components, like this one. However, I don't seem to be able to find any electronics store that stocks an IC like this - it seems very specialized.
So, i continued searching and I found this design, which seemed quite good. However, down at the bottom of the page it warns that unless you have a good experience with these type of circuits, that you should use the premade PCB that they offer. Why is this? Is this type of radio circuit very sensitive to circuit layout? Would it be impossible to build this circuit on a breadboard or prototype stripboard? I wanted to modify it so the output would be amplified by an op-amp to drive speakers or headphones.
In summary, is there any good designs for a superheterodyne FM receiver that isn't based on some sort of tricky-to-get-hold-of IC? Also, why might I not be able to build the one-transistor FM receiver on a breadboard or a PCB of my own design? Sorry if these aren't very clever questions, I don't have much experience with radio circuits, or huge amounts of experience with electronics for that matter. Any advice would be appreciated
So, i continued searching and I found this design, which seemed quite good. However, down at the bottom of the page it warns that unless you have a good experience with these type of circuits, that you should use the premade PCB that they offer. Why is this? Is this type of radio circuit very sensitive to circuit layout? Would it be impossible to build this circuit on a breadboard or prototype stripboard? I wanted to modify it so the output would be amplified by an op-amp to drive speakers or headphones.
In summary, is there any good designs for a superheterodyne FM receiver that isn't based on some sort of tricky-to-get-hold-of IC? Also, why might I not be able to build the one-transistor FM receiver on a breadboard or a PCB of my own design? Sorry if these aren't very clever questions, I don't have much experience with radio circuits, or huge amounts of experience with electronics for that matter. Any advice would be appreciated