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Printed Circuit Board Design and Method

An apparatus and method for providing a vented blind via in pad of a printed circuit board (PCB). A vent in the blind via in pad to allow gases formed during reflow soldering to escape from the solder joint. In one embodiment, the vent extends from the outer edge of the pad to the blind […]

Alarm temperature circuit

Alarm temperature circuit using C828, C458 Alarm temperature circuit using C828, C458

Simple Touch Switch circuit One Tr

Simple Touch Switch circuit One Tr using 2N3904

Headphone audio circuit using TL072

Headphone audio circuit using TL072 Headphone Amplifier Circuit using Op-Amp circuit using TL072

Electronics Schematic Diagram 6-10W stereo power audio amplifier with IC TDA2005

Electronics Schematic Diagram 6-10W stereo power audio amplifier with IC TDA2005 Component list: R1, R9 ________ 1K ohm R2 ____________ 120K ohm R3, R4 ________ 1K2 ohm R5, R6 ________ 33 ohm R7, R8 ________ 1 ohm IC ____________ TDA2005 Pot ___________ 10K ohm stereo C1 C2 __________ 2u2/50V C3 _____________ 10uF/25V C5, C6, C8 […]

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