Reading time: <1 minut This catalog presents the meaning of the various markings and inscriptions on the surface of non-polarized and polarized capacitors. Capacitors can be marked in 3 ways: using numbers and letters, only with numbers and using the color code (this notation has not been used for a few years).
Reading time: 3 minute Gogu Constantinescu is the Romanian engineer who laid the foundations of the sonicity theory, and the one whose invention can be said to have helped British aviation to tip the scales in its favor during the First World War.
Reading time: 3 minute The article presents two mounts that can be used as "mini" beacons. One of the fixtures is powered by a 12V source and uses a halogen bulb as the light source, and the other assembly is powered by 9V and has as light source two series LEDs.