This interesting sensor for RF signals was found in an article in the June 1989 Radio Electronics magazine. It is a field strength meter with an LED bargraph indicator.
Found in the February 1990 Radio Electronics issue, this sophisticated 100 MHz probe uses a period...
This circuit uses only passive components and the instrument can be a microammeter or the lowest...
The circuit shown enables dynamic diode testing with an oscilloscope. We found this configuration in a...