This organ, played by a probe was found in no old documentation, but it can be easily implemented these days. The integrated circuits are 555. The trimpot allows individual tuning of the keys.
We found this circuit in Motorola's Circuit Applications for the Triac 1971 manual. The circuit is for ½...
The assembly of a good multimeter meets only one obstacle: the precision that is obtained depends on...
This circuit was obtained from an Electronics World magazine from 1992. The circuit provides an...