Depending on the components, given in the table, this circuit can amplify signals of 100 MHz or 400 MHz. The circuit is from a 80's documentation. Equivalent transistor can be used.
This circuit was found in a 1960s documentation, providing a 2,000 gain amplified output. | Clique na...
Frequency in this oscillator is controlled by a crystal. Any 1 MHz to 15 MHz can be used. The JFET can...
This small source is suitable for low consumption equipment that uses batteries. The circuit is...