Did you find an LCR-T4 Component Tester in your Christmas stocking this year? At around $10, it’s a pretty neat gift for electronics makers. Read more
Tag: hamr
LTSpice Digital Breadboard – Learning Accelerator
Download your free LTSpice digital breadboard and have some fun learning electronics. Test and understand your ideas before you actually build something. Read more
Wideband Loop Transimpedance Op Amp Selection
You can select candidates for a wideband loop transimpedance op amp by reading data sheets and simulating performance in LTSpice. Read more
Wideband Loop Antenna Implementation Begins
Enough theory. It’s time to start the wideband loop antenna implementation using real parts and circuits. Read more
2018 Content Review – Lots of SDR and Electronics
As we head into our fourth year, it’s time to look back and do a 2018 content review. What did I actually accomplish over the past 365 days? Read more
Remembering Ham Radio Magazines
Ham radio magazines have been part of my life for fifty years. The best of them all was actually called “Ham Radio Magazine”. Remember it? Read more
Loop Amplifier Input Impedance – Keeping It Low
Popular circuits do a pretty good job of providing low loop amplifier input impedance. This means you can use these to keep a loop in short-circuit wideband mode quite easily. Read more
Andonstar ADSM201 Digital Microscope – Merry Christmas
Merry Christmas, John. An Andonstar ADSM201 digital microscope for SMD work. And looking at tiny bugs with the grandchildren, too. Read more
Loop Current-to-Voltage Converter – A Short Story
A transimpedance amplifier provides a near perfect loop current-to-voltage converter. It provides lots of gain while keeping your loop in wideband or short-circuit mode, which is what you need. Read more
Dipole Versus Wideband Magnetic Loop Performance
Dipole versus wideband magnetic loop performance simulations show that a good active loop will stack up fairly well on the HF ham bands. Read more