This circuit makes use of a specific 80's component and was found in an American manual of the time. A matrix keyboard allows you to select one of several music programs.
This circuit operates at a voltage of 1.3 V from a single mercury cell. We found in an old...
April 2017 - Mouser Electronics already has in stock the new HMC8400, Analog Devices low noise...
This circuit was found in documentation by Linear Technology from the 90's. The circuit makes...