This old two-stage video amplifier uses integrated circuits that are not easily obtainable today. The circuit is for analog video and was found in an American 1980s documentation.
This CMOS circuit for LED displays is from a Radio Electronics magazine from February 1989. The...
We found this configuration in an early 1977 publication. The PNP transistor may be the BC558 and...
This circuit was obtained from a 1978 Practical Wireless. It causes an LED to flash at a frequency that...