This circuit allows the detection of RF signals using the lowest range of direct currents of a common multimeter. Equivalent diodes such as 1N34 can be used. The circuit is assembled in a ballpoint tube.
The purpose of this circuit is to increase the selectivity of receivers with ferrite antennas. The circuit...
This solid-state relay circuit (SSR) or shield is from a 1995 Electronics Now. With it we can...
We show a channel of a simple preamplifier for ceramic capsules. This circuit is based on a very...