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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 […]

Electronic circuit diagram audio amplifier AN7140 5w

Electronic circuit diagram audio amplifier AN7140 5w Electronic circuit diagram audio amplifier AN7140 5w

Echo Repeater circuit

Echo Repeater circuit using IC AN6551, MN3005, MN3101 and TR C536 Echo Repeater circuit using IC AN6551, MN3005, MN3101 and TR C536

audio amplifiers circuit

audio amplifiers circuit Audio Amplifiers Audio Amplifiers circuit using STK084G audio amplifiers circuit audio amplifiers circuit

High Quality 150W Power Amplifier circuit

High Quality 150W Power Amplifier circuit using 2N3055, 2N2219, 2N3250 only with power supply – and + Short circuit protection, 94dB supply rejection ratio, thermal protection, S/N ratio in excess of 100dB, Open loop gain typically 90dB and 10A quiescent current, 2N3055, 2N2219, 2N3250 is great enough to give you good audio performmance. This power […]

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