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Datasheet BD135 Philipshttp://www.datasheetcatalog.org/datasheet/philips/BD139-16.pdf
Class-A Headphone AmplifierThis circuit is derived from the Portable Headphone Amplifier featuring an NPN/PNP compound pair emitter follower output stage.http://circuits-projects.blogspot.com/2016/06/class-headphone-amplifier.html
Low Cost Universal Battery ChargerHere is the circuit diagram of a low cost universal charger for NiCD - NiMH batteries. This circuit is Ideal for car use. It has ability to transform a mains adapter in to a charger.http://circuits-projects.blogspot.nl/2012/10/low-cost-universal-battery-charger.html
Small uninterruptible power supply-UPS circuitThis small emergency backup battery systems circuit can be applied to many applications, when the power goes, the battery can provide backup power automatically.http://www.eleccircuit.com/small-uninterruptible-power-supply-ups-circuit/
Creation date : 30/12/2012 @ 00:06 Last update : 09/09/2018 @ 23:41 Category : Transistors BD-Serie Page read 11886 times
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