retro electronic components on board

electronics machine multimedia design blue lighting number electronic components mounted board industrial background retro componenets motherboard electronic technology industrial vintage machine electrical board industry switch equipment control panel power old capacitor resistor chip integrated-circuit microchip circuit-board pcb industrial-electronic transistor diode semiconductor link top view cable hardware electricity testing-lab electronic-components electronic-industry power-electronics analog-circuit technical-service engineering-background workshop repairing capacitance lab programmable programmable-field rom eprom engineering controller interface