We found this 4.5 MHz amplifier for video signals from old analog TVs in the June 1992 issue of Radio Electronics magazine. It uses a 592 integrated circuit.
June 2017 - Mouser Electronics announced the availability of new low-power Bluetooth modules from...
In the figure we have the original version of an amplifier with high input impedance, 1.2 M ohms....
This sensitive circuit can be designed with FETs such as BF245 and MPF102. The sensor is a silicon...