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Posts tagged 2N2222

Infrared Motion Detector schema diagram

Infrared Motion Detector electronic circuit schematic diagram Using TR 2N2222, SY32PT    

Electronic circuit diagram audio amplifier AN7178 6w

Electronic circuit diagram audio amplifier AN7178 6w

consumer goods why arnt they repairable?

steve50 asked: many years ago as a tv man i could repair many tv’s in customers houses there were known brands and real wood cabinets some even came with circuit diagrams in the box. now they are all made in foreign lands no circuits and if a main part has gone its scrap time even […]

How to make SWR measuring Transmitter output Power

How to make SWR measuring Transmitter output Power? SWR is not difficult to make, although the circuit is very simple SWR SWR but it has the function of the transmitter output power measured with any accuracy, and how to add components to SWR SWR-PWR schema. If you change the resistor values increase the componint that […]

Power Supply Control

Power Supply Control using BC549, BC559, BD139

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