Found in a 90s R-E Experimenters Handbook, this circuit amplifies signals from 100 Hz to 3 MHz. The circuit has a gain of approximately 30 dB. Bipolar transistors are general-purpose types.
This low-pass filter with 741 op and symmetrical source was found in the August 1993 issue of...
This RF amplifier step has a dynamic range of 140 dB and can amplify signals from 0.5 to 40 MHz....
This project from a 1983 publication can be assembled using more modern transistors. We can use...