This sound effect circuit uses only one integrated. We found it in a 90's EDN. The effects can be modified by changing the components.
This indicator or VU meter for stereo amplifiers was found in a 90s Radio Electronics. The...
This sophisticated comparator, which may have didactic or practical purposes, was found in a 1980s...
This static switch circuit or solid-state contactor was found in a Motorola documentation from...