This 1 to 40 MHz amplifier is from a 1969 Motorola documentation. The components are of the time but admit modern equivalents.
This simple digital frequency meter using CMOS circuits reaches 5 MHz frequency. Input signals are...
This stage circuitry for amplifying microphone signals makes use of germanium transistors as indicated...
This configuration with the 741 Operational Amplifier has an NAB equalization for magnetic...