The 8 pin screw connector finally arrived, so last weekend I took some time to assemble the 4 remaining PCB’s…
Continue ReadingTest Fitting Of External Keypad V1.20
As I mentioned in my previous post, there were some things that could be improved about the IC-7300 External Keyboard.…
Continue ReadingIcom IC-7300 External Keyboard – Working Prototype
Last week, all but one of the parts to assemble the IC-7300 external keyboard arrived. The missing part is the…
Continue ReadingIcom IC-7300 External Keyboard – PCB
In March 2019 I already made an external keyboard for the IC-7300 in an aluminum enclosure. You can read that…
Continue ReadingAutomatic Magnetic Loop Tuner – Smaller Enclosure Finished
When our first batch of automatic magnetic loop tuners was finished, I started looking for another enclosure. One that was…
Continue ReadingAutomatic Magnetic Loop Tuner – Kit
Everything you need to build the automatic magnetic loop tuner in just one picture. On the Flickr page, you can…
Continue ReadingHow Are PCB’s Made?
There are about 10 working days between finishing the PCB design in Eagle and the reception of the finished product…
Continue ReadingAutomatic 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…
Continue ReadingAutomatic 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…
Continue ReadingAutomatic 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…
Continue ReadingAutomatic Magnetic Loop Tuner – SWR Bridge In A RF Shielded Box
Since we are dealing with RF we have to keep it away from all other components and equipment in our…
Continue ReadingAutomatic Magnetic Loop Tuner – SWR Bridge
While reading the frequency from the radio, and having the “antenna characteristics” in the tuner’s memory, there is no real…
Continue Reading