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    Maxitronix Crystal Radio Experiment Kit | Explore Electronics with Radio Experiments
    Maxitronix Crystal Radio Experiment Kit | Explore Electronics with Radio Experiments
    Maxitronix Crystal Radio Experiment Kit | Explore Electronics with Radio Experiments
    Maxitronix Crystal Radio Experiment Kit | Explore Electronics with Radio Experiments
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    Elenco

    Maxitronix Crystal Radio Experiment Kit | Explore Electronics with Radio Experiments

    2.8
    €72,00
    €72,00
    €118,00
    Sold out
    Save 39% (€46,00)
    You can't add more than 500 quantity.
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    • Tracked Shipping on All Orders
    • 14 Days Returns

    Description

    • Great Introduction to Electronics and Radio Science.
    • Receive real broadcast radio!
    • No Soldering required.
    • Quality Elenco Electronics Kit.
    Read more

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    Customer Reviews

    Easy to assemble, but not likely to work as you might expectIt works, but only if you have absolute silence, a good nearby AM station, and a lot of patience to tune in. It worked at our quiet suburban home. My wife tried it at the school for the blind where she was teaching science. There was just too much background noise of ventilation systems, etc. It is probably a good product, the physics is simply challenging.They should have a convenient way to plug the output into an amplifier. 4disappointedMy husband bought this for me because he knew I was looking for the parts to make a crystal radio. My grandsons were interested in seeing how I did this when I was a girl and I wanted to show them how it worked without batteries or a plug. I did not want a big purple plastic bubble. I just wanted the basic parts so my grandsons and I could build it ourselves. They are ten and thirteen. This product was too babyish for them. In addition, we could not make it work. The yellow dial is flimsy and didn't seem very effective.Very short antenna. It was a disappointment. I'm going to take the usable parts off of the plastic, screw them to a piece of wood, and see if i can make it work. This is not brain surgery. We were looking more for Tom Sawyer than Disney. 1It actually works...with speakersWell I got this for a school project, it took about 30 mins to build. It comes with step by step instructions which are very straight forward for the most part. The challenge came with actually trying to get sound out of it.The little speaker that comes with it is not loud enough for you to hear anything. When my teacher connected it to speakers ( he did with all the other students) it was reeaallly clear and loud! I mean I was very surprised, we actually got like three stations; no static, very clear! I was pleasantly surprised.Pros: -Cheap although as I am writing this it is significantly cheaper than when I bought it :(-Easy to put together-Fun once you actually get sound out of it.Cons: - Like I mentioned you probably will need speakers to actually be able to hear anything.-It really is just the blue frame, with really long wires and plastic parts, I think there is more challenging crystal radio's to build on amazon if that's what you are looking for.Generally I like it. 4Must be Electrical Technicial to AssembleThe instructions are vague and outright wrong at several points. If you do not know your electronic symbols and a little about electrical circuit theory, you are going to be challenged to get this working.Certainly not something children could assemble alone as an educational aid like Crystal Radio Kits should be. But it does work once you figure everything out. Just don't expect much from an audio/tuning standpoint. This is an experiment in radio theory, not a pleasure radio. At best you may faintly hear one or two nearby stations. But, that is not the point. The point is how radio waves from miles away are able run a radio receiver with no other source of power.This is very similar to what WW2 prisoners of war created in their prisons to monitor allied radio signals. You can construct one of these the size of a cigarette pack and the only manufactured item you need is the diode. If one could sneak in a diode (the size of a 1/2" piece of pencil lead), everything else can be fashioned from everyday materials. Pretty amazing! 2Good in principle poor in executionMy son needed to build a crystal diode radio for the Communications Merit Badge in the Boy Scouts. I searched the internet to find a good price and this was it. The instructions were fairly easy to understand and my son built it himself without supervision. But he was unable to get it working. I took a look at it and found that the problems he had were primarily due to incorrectly orienting the kit's chassis to the drawing. Maybe colored springs would make it easier to know what connects where but I can't fault them for that, there needs to be some challenge. The real issue I have with the radio is it doesn't pull in radio stations very well.From my own experimentation I grounded the kit correctly and hung the antenna at its full height. I could only find one radio station and it was so quiet I could just hear the peaks of the conversation. I went over the connection two more times to ensure that I hadn't shorted anything (a real problem with spring clips) and never achieved any better reception. However the radio worked just enough for my son to get his merit badge.I have built these radios when I was a kid and they actually worked well. I think this needs to be re-engineered to improve the sensitivity and increase the volume coming out of the ear phone. 2Big Kid get's it to work.I have never built a crystal radio. I'm learning electronics and so it is high time for me to build one. (Should have done it 44 years ago!) I purchased this kit and put it together. It's pretty easy to build. Seems like a good kit for a young kid to learn with. A parent should be standing by to interpret some of the instructions and to help out a bit. I got it too work and could hear a radio station ... not very clearly, but I could hear what was going on. At first I want up to the fourth floor and I strung the antenna wire over some doors up high. My house has PVC pipe for water pipes, so finding a good ground is not obvious. I know where ground can always be found (the book recommends not doing this the way I did, but being an adult, I knew what to do).I did hear an extremely weak signal but could not make out what was being said. Next, I moved the kit to a cable TV outlet that we aren't using. I pushed the antenna wire into the center of the cable outlet. I found a nearby good ground again. This time I could hear one radio station fairly well to the point I could make out what was being said. Amazing! Only powered by radio waves. Very cool!If you want to learn a bit about how crystal radios work, here is a good video that explains it pretty well:http://youtu.be/0-PParSmwtE 4Works, could be designed better.First of all: it works. I had some trouble at first, but that was because I was using the wrong sort of antenna (and I also hooked it up wrong once). After I stuck closer to the instructions (ground + long wire) I could pick up 2-3 different stations clearly. (But remember, this is a completely UNAMPLIFIED radio with no power source. It's never going to be loud; you need to stick the earpiece in and listen in a quiet room. And how well it works also depends on how close you are to AM broadcast stations.)The springs are not as easy to use as the ones on my childhood Radio Shack electronics kits were. For some reason, they have tapered ends, making it hard to bend them over to insert a wire. The instructions say to use a pencil point to help twist the spring into the plastic base, and that won't work either; you'll want a pair of needle-nose pliers to do it easily. The base doesn't have any ridges in the holes to lock the springs in; the holes are just slightly tapered. Still, if you stuff the spring in so that looking from the underside, the coils bulge around the bottom of the hole a bit, then they stay in reliably.Also, once the coil is mounted (the yellow cylinder snaps in firmly to the purple base and isn't designed to be removable), the assembly is tall enough that it won't fit back in the original box for storage unless you bend the box out of shape. 4while it was fun and a learning experienceThe crystal radio we received was not the one in the one in the pictures. The one we received does not have the springs (which I assume would make for easier attachments than the "washer/nuts/bolts attachments" that came with our kit). . . .while it was fun and a learning experience, the coil was NOT prewound, and we had to do it ourselves . . .this was actually kinda fun, but just FYI. This is a great learning tool for my son, who is very interested in how radios work. Once setup, we were able to hear some static, but no radio stations, however we live in a very rural area and will try when we are in a city next. I would have given 5 stars, except that the product we received was not the product in the pictures. I have included a picture of the product we received. 4A fine radio kit.I bought this kit just so that I can have a specific part that it had. I was trying to build a crystal radio of my own but certain compontents can be hard to find. My experiment failed and I'm afraid that I'll have to rate this product according to my attainment of the missing part. This kit looks very legit so I bet it would be a great purchase for a young radio enthusiast. 5I am trying to give this product a good review but unfortunately I can'tI am trying to give this product a good review but unfortunately I can't. I bought this product for my BSA Bear den to complete the Radio elective. First off the instructions are not too intuitive and vague for a 8 years old boy. Heck I am an engineer and took me time to figure the instructions out. 2. Color code your instructions, so the boys know what to do. Better diagram would not be an over kill. After all was settled and done, I and the others parents ( I don't want to look too obvious disappointed) could not get this thing to work, not event with a telescopic antenna. I must say it was a lot of fun for the boys to build the radio but It would have been priceless to see it work.worth of the boys time but not the money. 2
    Maxitronix Crystal Radio Experiment Kit | Explore Electronics with Radio Experiments

    Maxitronix Crystal Radio Experiment Kit | Explore Electronics with Radio Experiments

    2.8
    You can't add more than 500 quantity.
    €72,00
    €72,00
    €118,00
    Sold out
    Save 39% (€46,00)