| This electric charge detector can be built from only three components: a diode, a J-FET and an LED. Well, to be completely honest, you need...
| This electric charge detector can be built from only three components: a diode, a J-FET and an LED. Well, to be completely honest, you need...
| New old stock (NOS) component supplies can be interesting if you are looking for cheap or obsolete components, but since such parts are old...