This circuit was found in a 1980s documentation. It shows how to obtain a bistable with the 555 by directly driving two indicator LEDs.
In this oscillator a phase shift network formed by C1, C2, C3 and R1, R3, R4 determine the fase...
For inductive loads we have the configuration shown in the figure. Note that the optical coupler...
This circuit was found in the Linear Applications Handbook by National Semiconductor. It uses...