Many thanks to SWLing Post contributor, Giuseppe Morlè, who writes:
Dear Thomas,
This is Giuseppe Morlè, from Formia central Italy on the Tyrrhenian Sea,
I built this “Magic Tablet. during a rainy afternoon to test various portables I have.
The tablet is composed of 2 separate circuits: one for the short waves, a single coil along the entire perimeter of the tablet, and another with 2 ferrites wrapped around 36 turns of telephone cable for the medium waves.
The heart of the system is a 1050 pf variable capacitor with its old wheel.
To listen to medium wave I have to exclude the short wave loop with a switch on the loop.
I also added another small switch to connect it to a capacitor for more or less capacity, but this I will do later.
I can test my portables like this because the tablet tunes very well from 500 kHz to 18 MHz. I spent very little to make all this as it is all recycled stuff.
You can see the first tests on the balcony of my house with a Tecsun H-501 via my YouTube channel:
Note: this video is in Italian, but you can turn on closed captions and have it translate into the language of your choice.
As I always say, I am not a technician and I have little manual skills in building things, not having a proper laboratory. When I get an idea, I put it on paper and I start to find all the materials and then see if they work. Not all of us are of the experts in electronics–what drives me is a passion for radio listening. Now being retired, I have more time to devote to it.
Thanks to you and hello to the whole SWLing Post community …
73. Giuseppe Morlè (IZ0GZW)
I love this, Giuseppe! What a clever all-in-one portable antenna system for your shortwave radios. I especially love the fact you were able to create all of this from parts you have at your home. You’ve got a winning attitude, too: build and experiment! Thank you for sharing.
Neat!!!! I made something like this with a Homebrew godz-eye antenna, except mine is for pretty much Medium Wave only. So, seeing that this was switchable from 40M, to 80M, then 20M, is a neat tool to have, indeed. Could be used on one of those RTL-SDR’s, where front-end overload is usually a problem. Granted, my Italian is non-existent, but you certainly get a lot from the VID.
Thanks all…my pleasure.
73. Giuseppe.
Color me impressed! Ciao!
Love this, thank you for sharing!
Cool!
Very interesting and creative design, thank you for sharing this, Giuseppe!