This circuit was found in Siliconix documentation from the 1980s. Equivalent operational amplifiers can be used and the output current is very low.
This is a circuit that appears several times in this section and in articles. It is a preamplifier for...
This circuit measures the power of a transmitter being sandwiched between the antenna output and the...
In the figure we have the way to connect 6 solar cells in order to obtain higher voltage and...