This high-impedance probe for oscilloscopes was found in a July 1958 Radio Electronics magazine. The circuit did not include a power supply.
We found this circuit in the 1977 RCA Solid State ICs. The circuit consists of a current amplifier with...
This circuit can serve as a basis for a robot that follows a line on the ground. The circuit has...
We found this circuit in the 1995 Encyclopedia of Electronic Circuits. The circuit triggers a...