A summary or tutorial about the basics of the photodarlington transistor, its applications, construction and how it is different to the phototransistor.
Notes and overview about the feed impedance of a dipole antenna - what affects it, how it may be determined, & other key details.
Tutorial about 4G LTE-Advanced detailing how it is based on the basic 3G LTE and how the extra speed is obtained and how the additional features work.
A constant impedance circuit design for variable RF attenuators using PIN diodes for use in a variety of RF design applications including programmable RF attenuators..
A summary or tutorial about the basics of logic probes - what a logic probe is, how a logic probe works.
Essential circuit details, equations and calculations for operational amplifier gain for generic, open and closed loop circuit configurations.
List of Wi-Fi / WLAN / 802.11 bands, their channel frequencies and bandwidth, 2.4 & 5 GHz allocations worldwide, & summary of which WiFi channels can be used together.
Data centres are becoming increasingly important as the amount of data being stored and accessed rises exponentially - but one forgotten element is the data centre power supplies.
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