Amateur Radio

Automatic Magnetic Loop Tuner – IC-7300 setup

The Automatic Magnetic Loop Tuner can be used with a variety of transceivers, from the most common brands like Yaesu,…

5 years ago

Power And SWR Meter – Multi Band Calibration

You might have noticed it: I'm a big fan of Loftur's projects. I've already described his Automatic Magnetic Loop Tuner…

5 years ago

USB Morse Key Keyboard Input

Funny little project to train your morse code sending capabilities. Let's connect a morse key to a pc and turn…

6 years ago

Automatic Magnetic Loop Tuner – Smaller Enclosure Green Display

I was trying to fit the automatic magnetic loop tuner into a smaller enclosure. It was only a partial success.…

6 years ago

Automatic Magnetic Loop Tuner – Kit

Everything you need to build the automatic magnetic loop tuner in just one picture. On the Flickr page, you can…

6 years ago

How Are PCB’s Made?

There are about 10 working days between finishing the PCB design in Eagle and the reception of the finished product…

6 years ago

Automatic Magnetic Loop Tuner – Stepper Motor

Adafruit has dedicated an interesting blogpost about stepper motors. Click on the link below to learn all about stepper motors.…

6 years ago

Automatic Magnetic Loop Tuner – Another Soldering Session

I took some time to solder another PCB for an Automatic Magnetic Loop Tuner. I made some pictures of the…

6 years ago

Automatic Magnetic Loop Tuner – Printed Circuit Board (PCB)

Using the original schematic as a starting point, I reworked the electrical diagram and incorporated an A4988/DRV8825 module. You can…

6 years ago

Automatic Magnetic Loop Tuner – A4975STB, A4988 or DRV8825

The design Loftur published on the project site was built around two A4975SBT ic's. Although they are available at digikey.com…

6 years ago