[Patman2700] has a nice scope for his paintball gun that uses a red dot instead of cross-hairs. The problem is that he kept forgetting to turn it off which ended up running the batteries down ...

This is an improved version of Anthony Smith’s designs for a latch on/latch off switch (see the whole series below). The new design switches a 120VAC load, and includes several much-needed details on ...

The circuits was designed to illustrate the different functionality of an ON-OFF electronic switch the uses a push button mechanism. Three circuits have been sampled that utilizes the push button ...

With both momentary and maintained contact options, the switches offer wireless control from both person and position. The user can choose and install a desired operator (22 mm rotary switch, key ...