Cellphone Device

Please sign up for the course before starting the lesson.

Lab OverviewThis circuit historically is attached to a cell phone. The small signal from the speaker of the cell phone engages with an optocoupler to trigger an SCR, which triggers a relay to fire a DET.Tools / Parts / Test EquipmentSoldering IronHelping Hands Solder Multimeter

Back to: RF Principles
Contact us