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 low power audio amplifier was found at 1992s Popular Electronics. Transistors are general...
This test, the commercial transistor tester, had its diagram published in an article in Radio...
This light meter can be mounted with equivalent integrated circuit. The power is made by a single...