However, if you want it on the cheap you have to prepare for some things. First of all it will cost you time, 6 weeks or more to have the goods delivered. Second, the packages are not always that good. My first PWM controller was severely damaged and the seller sent another one that was packed well. The 12V motor got a defect as well, turning only left and not right. After a short surgery the contacts on the rotor were dirty and a few drops of contact cleaner and some compressed air did the trick.So why this project in the first place. At first I wanted to make a rotatable magloop for receive on the low bands and especially 60m since there was a lot of radar QRM there lately. Not a wideband loop with a rx amplifier like widely used by radio amateurs. I want to make as selective as possible. You probabely noticed the variable capacitor I use is not really good for transmission but good enough for receive. But time is always my enemy. So I just developed it as fun experiment...
I might use it in a magloop project in the future.
2 comments:
Despite my lack of detail, you produced something pretty identical! Very nice! The only comment: probably an idea to increase the distance between the flex connectors. The most important take-home is that this dirt cheap solution is a good reminder of how much we are being ripped off by commercial magloops and their tuning units that need specialised knowledge and parts to repair.
Hello John, it is a prototype. I've thought about the connectors afterwards. I don't like the housing either. But haven't find a nice plastic box to fit the tuner in. Well....time is a issue. 73, Bas
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