analog and digital electronic circuits

electronics gadget machine green multimedia toy motherboard signage lego laptop analog electronic circuit board digital background aelectronic circuits industrial-components electric-engineering analog-electronic motherboard electronic equipment hardware technology processor chip pc electrical circuit board computer repair electronics industry mainboard engineering resistor digital schema control-systems capacitor socket close-up connector parts closeup macro diode transformator regulator card cpu electronic-cards signal integrated-circuits background industrial-electronic maintenance electronic-switches sensors actuators power-machine-designs power-conditioning transistor