This circuit incorporates the passive control of the previous circuit and was also found in the March 1995 Electronics Now magazine. The power supply must be symmetrical.
This circuit was found in an English magazine from 1981. We can still assemble it using BC548...
This circuit is from a 1978 optoelectronics manual from Texas Instruments. The transistor can be a...
LEDs are diodes and can be tested with a simple configuration that allows the display of its...