This circuit is from National Semiconductor using an LM11, which is uncommon nowadays. The circuit can be implemented with other operational ones.
This amplifier for automotive use was found in the SGS manual of linear integrated circuits of...
This low voltage lamp flasher can be powered from 12 V supplies. Frequency is adjusted by P1 and...
This circuit, suggested by a 1975 documentation, detects an electrical discharge in a storm by...