Power amplifier clipping indicator

Power amplifier clipping indicato The overdriving function of this audio circuit can avoid from the sound of the tweeter being burned, this audiophile uses only transistors

Test equipment schematic for detect remote control

Test equipment schematic for detect remote control  using BC109C, LM7805 C1 100u 10V C2 100n R1 10k R2 1k R3 33R 1W R4 3k3 Q1 BC109C IC1 LM7805 if your remote control was broken, of course, require a tool to ensure 100% broken, this is the tool used to test if the remote is damaged