This circuit was found in a Modern Transistor Workbook from 1965. The circuit sends signals from a small record player to a medium-wave radio placed nearby.
The circuit is from National Semiconductor's Linear Applications Handbook. The operational...
This circuit is old, causing LEDs to be lit sequentially. Several types of games can be programmed using...
This circuit of the 70's uses transistors of the time. The circuit can amplify signals from 10 Hz...