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Simple electronic audio communication

Simple electronic audio communication simple intercom system schematic Audio communication Principles of equipment for communication with electronic audio devices, and this is the principle means of electronic communication cables Simple electronic audio communication

no picture and audio on my TV?

Bernardo B asked: there is no picture and audio on my TV when i turn-on my TV, but there’s a sound thuk from the speaker when i plug-in the supply cord. i tried to open the back of the TV to check if the fuse is ok and it seems to be good. i trace […]

Build a Circuit Educational Game

Build a Circuit Educational Game using CD74HC75, CD74AC20

Tone Control circuit

Tone Control circuit using TR C1213 and A561 Tone Control circuit using TR C1213 and A561

Echo Repeter and preamp mic schematic

Echo Repeter and preamp mic schematic Part R1,6,25,36,48,54           2K2 R2,7,16,27               470K R3,8,26,31               12K R4,9,39               220R R5,10                   22K R11                   1M5 R12,45                   10K R13,52,53,58,59           […]

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