dusty electronic components

lighting light photograph dusty electronic components uncared-for resistor coil transformer high-voltage dusty-electronic-components maintenance-engineering electronics electric dirty maintenance unmaintained machine scheduling industry industrial-engineering maintenance-technician black grey environment risk- industrial-electronic malfunction technical-service vacuum old neglected semiconductor extremely-dusty circuit-board pcb electronic-components maintainability reliability safety-hazards repairing hardware technical service durable serviceable long-lived periodical periodic-maintenance equipment -operation