Found in a 90’s Popular Electronics, this circuit uses a component that can be difficult to obtain today. It achieves a 10 dB noise reduction with the indicated components.
We found this circuit in an Electronics Handbook from the 1980s. It filters out noise from a radio...
We found this circuit in the May 1989 issue of Radio Electronics magazine. The circuit uses...
This TTL circuit generates a 100 MHz signal for digital instruments. The CI is not easy to obtain,...