AM/FM Radio Kit |Switch Between ICs & Transistors | Solder | Great STEM Project | Superheterodyne Designed to AM and FM Broadcasts | SOLDERING REQUIRED

With this review I hope give you some idea about what this kit does and doesn't do and how it can be a great learning tool for both young and old alike. This kit is very complete, everything needed for building a complete AM and FM radio is included in the box. All the parts are neatly laid out and placed on cards for easy identification. The construction manual is very easy to follow and it also includes tests needed to be done during the construction process as well as final tuning when complete. The radio's circuit board is laid out is with the AM section on the bottom and the FM on the top of the board. If you follow the manual you will be building the AM section first with the FM section second. This makes the construction easier as both the AM and FM sections of the radio are broken down into small sections, then a test to make sure everything is working before moving to the next section. The manual goes into how and why the circuits and other electronic parts do what they do and how they do it. This kit can be built with just a multi-meter or you can also use an oscilloscope for more complete testing and understanding of the parts and circuits, but the oscilloscope is not necessary for the build. This is kit is both a relaxing build and a great teaching tool. If you have teenagers in the house, this kit will teach how to make good solder connections of the parts onto the board. The board has more room between parts and solder pads, so the process is much easier to get the parts mounted to the board successfully. The board also has all the symbols printed on the board that you would normally see on a schematic drawing layout. This is a good way to see both symbols together and it helps in the learning process. The board also includes dedicated test points for doing the testing needed during the building process. This is one of the best kits to get your feet wet in electronics or as a very good teaching tool for young adults and adults alike. Once done you have a working AM/FM radio. Since this is a battery operated radio, its great to have around when the power goes out. I would recommend using a good 60/40 Tin Lead solder, with a diameter of 1mm, this solder is much easier to work with and make a good connection, you don't need all that heat on the board and electronic parts when learning. The provided solder is lead free and makes it more of a challenge to get a good solder joint when learning the soldering process. Fun project!

Excellent.

It's an interesting kit and rather fun. Certainly not for a beginner, but not overly difficult. Instructions were certainly good, even excellent. I had the "education" version which covered not only construction but also extensive testing and alignment information and a bit of radio theory. Unfortunately it was missing several transistors. Fortunately they are a very common type and I had some on the shelf. The lead-free solder the kit came with was useless and after a few frustrating attempts to work with it, it went in the trash and I used normal 0.032" rosin core lead/tin solder. Resistors and capacitors are attached to convenient cards and clearly labeled making finding the right parts easy. Unfortunately that isn't true of the transistors, which are simply dumped into small bags with other misc. parts. The coils are about as cheap as they they come. Use caution when turning the slugs to adjust them, they're easy to mess up Full testing and alignment really require an oscilloscope and audio/RF generator to get the most out of the kit. If you lack one or both of those, you can get away with just a VOM for preliminary testing and troubleshooting. Maybe? Alignment for proper receiving is going to be interesting if you're trying to play it by ear without the right test gear I'd think, but could probably be done.

Significantly more explanation is needed under the individual steps to truly understand what is going on. Directions are simple and easy to follow, but not the explanation.

This kit was a lot of fun to build. I learned a lot building it and still learning as I dig deeper into understanding how everything really works together. Offers some great opportunities to learn how to build, test, diagnose issues in radios - especially if you have test equipment (signal generator, oscilloscope, multimeter). (Don't worry the kit doesn't require you have any test equipment. It has steps for with test equipment or without.) Building each part step by step and testing it was great for learning and increases your chances of a successful build. Some notes: - It has you build a second amplifier in place of the lm386 chip to show details of how the amplifier works. Which is great. Just remember this is to be temporary as it will direct you to replace the chip when done. If you aren't careful you might do what I did and bend all of the pins in the IC 8 pin socket making the secondary amplifier not work and then making it impossible to put the chip back later. - If you have a signal generator it needs to support 455khz, 10.7 MHZ and around 88 MHZ with FM and AM modulation. (This might be a really expensive signal generator to support all of those. Mine didn't it only supported up to 10.7 MHZ and for some reason my FM modulation wasn't work. ) - To make it easier to confirm frequency alignment at the end I used a bluetooth connected old car speakerphone that had FM support in it and I made it broadcast my music player from my phone at the specific frequencies needed - that made alignment a lot easier. - Keep an eye on the traces on the board - some of them broke connecting where the component was - Many times just adding more solder could solve it - though in one case I had some spare wire around and just made a jumper to the rest of the trace it broke off from.

I wholeheartedly recommend this kit. It presented both a challenging and enjoyable assembly experience. The included manual is exceptional. Not only does it provide comprehensive assembly instructions, but it also delves into the technical background of each radio section, accompanied by meticulously detailed troubleshooting tools. Notably, I gained valuable insights into operating an oscilloscope solely through this manual. I highly suggest this kit to individuals with an interest in electronics.

Mejorar la calidad del PCB

O kit é excelente. Muito boa a apredizagem.

Working very well Highly recommended Very informative

２つ購入しました。一つは組み立て用、もう一つは部品の特性測定用や部品在庫用としてです。しかし、組み立てテキストが、細部まで気を使っているので驚いた。つまり、電源とアンプ回路から始まって、最後にアンテナとLC回路を作る形になっていて、回路毎に、直流電圧測定による動作確認や、信号発生器とオシロスコープを用いた回路特性測定をする仕組みになっているのだ。しかも、AMのみでなくFM も受信出来るのにも感動した。

Excelente