This circuit is intended to switch high frequency antennas using common diodes. The circuit is from an 80's documentation appearing in other versions in this same section of the site.
We found this circuit in a documentation from the 70s. The original text was kept. The oscillator...
The figure shows how to use an LM3914 with a variable range moving point. The circuit has an...
This simple circuit serves to identify the terminals of a PNP transistor. For NPN transistors, just invert...