Video Processor with Automatic Cut-off Control using TDA4686 Video Processor with Automatic Cut-off Control using TDA4686 General Description The TDA4686 is a monolithic integrated circuit with a luminance and a colour difference interface for video processing in TV receivers. Its primary functions is to process the luminance and colour difference signals from a colour decoder […]
Posts tagged Automatic Cut-off Control
Portable guitar headphone circuit
Portable guitar headphone circuit I built a portable headphone amplifier for testing purposes Headphone amp circuit using : R1 = 10K R2 = 100K R3 = 68K R4 = 1.5K R5 = 3.3K R6 = 330R R7 = 4K7 R8 = 2.2R C1 = 1µF-63V C2 = 100µF-25V C3 = 470µF-25V Q1 = BC239C Q2 […]
Universal Laptop Power Supply
Universal Laptop Power Supply using LM741 and 2N3055
loudspeaker protection circuit
loudspeaker protection circuit and Muting Circuit using BC546 BC549 Relay
PC serial port RS-232 pin out and wiring
PC serial port RS-232 pin out and wiring
