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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 […]

TTL RS232 driver circuit and Protect the PC from direct connection to hazardous voltages

TTL RS232 driver circuit. TTL driver circuit consists of 2 transistors and a few other passive components, a negative voltage for RS232 logic generated by the capacitor C7. TTL to RS232 driver circuit and a variable voltage output driver has a parallel termination impedance to match cable and TTL driver circuit, and provides the best […]

High Fidelity AM Tuner

High Fidelity AM Tuner Approaches to Wideband and High Fidelity AM MW Broadcast Band using mpf102 High Fidelity AM Tuner circuit diagram

Infrared Temperature Sensors With Digital Output

Infrared Temperature Sensors With Digital Output

Audio Volume Controls

Audio Volume Controls AutoMatic Volume Control Circuits using TL082 IC Audio Amplifier Design News

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