Found in the December 1974 issue of Radio Electronics, this circuit is similar to the previous one, only using another TTL counter. The circuit must be powered by 5 V.
The circuit shown consists of a bilateral constant current source with an operational one that...
The sound of this experimental musical instrument is produced by the movement of the hand in front...
We found this circuit in a Japanese 1968’s documentation. The circuit makes use of transistors from...