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Simple Alarm Circuit using 12C509

alarm circuit diagrams Simple Alarm Circuit using 12C509, 2N7000, 78L05

Electronic Circuit ding-dong Sound for any Alarm

Electronic Circuit ding-dong Sound for any Alarm Basically the circuit alternates between two frequencies which are adjustable. This produces the “ding-dong” sound.

PCB circuit

Audio PCB circuit for Cellphone using TEA2025 Phone circuit and Audio circuit using TEA2025

LG TV Circuit Block

Free LG TV Circuit Block Diagram for repairing

Pelican GBA TV tuner?

judah_ram asked: i want to know where can i get a circuit diagram of this gadget, what is the name and number of the erased IC used, and possible solution to the common fault. thank you very much to those who will care to reply.

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