Found in old English documentation, this circuit can be built with BC548 transistors.
This circuit, which can be used as a shield, was found in a 1980s documentation. The circuit can be...
This 4.5 MHz amplifier is suitable for analog TV applications. We found it in a 1967 Philips...
The integrated circuit used in this 1986 wireless microphone is not very common today. The L1 coil...
