250 Watt amp circuit previously shared 2x100W circuit developed beefed supply voltage 2x75v DC symmetrical in total 150V working with the output transistor-the 2SC3858 this transistor is not found instead 2sc5200 used in this case, the number of transistors necessary to increase or very good cooling to do the PCB drawing layout assembly supply circuit all information provided in critical areas including .. also making measurements of voltage values should be shown with photos
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Published: 2012/05/20 Tags: transistor amplifier
Laser burn with DVD Writer
Far as I know in the market with high-powered lasers are sold in this application DVD burner laser a plastic piece on the burning writing used in any circuit does not need only laser + end 5w 50 or 100 ohms between the resistor is connected. Author burning from 5 inches away doing your job, but if I remember correctly from the bubble burst, there were those longer distances 🙂