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Posts tagged BC549s

InPowered battery charger circuit

InPowered battery charger circuit diagram schematic 6V-12V using NE555, LM7812, 2SA671, 1N4002, BC549 auto battery charger circuit On a lithium-ion cell, 3.8V/cell indicates a state-of-charge of about 50%. It must be noted that utilizing voltage as a fuel gauge function is inaccurate because cells made by different manufacturers produce a slightly different voltage profile. This […]

Wireless Receiver Application Circuit with the GL116 decoder – Electronics Schematic Diagram

Wireless Receiver Application Circuit with the GL116 decoder The packets of serial output that are generated by the transmitter encoder and sent to the receiver decoder by wireless, infra red or other means are fed into serial input pin 40 of the decoder. A packet is stored and the address bytes within it are compared […]

3W Audio Amplifier Circuit using TDA7057Q

3W Audio Amplifier Circuit using TDA7057Q

Amplifier Circuit using STK1030

Amplifier Circuit using STK1030 30W Audio Amplifier Circuit using STK1030

Guitar Amplifiers

100W Guitar Amplifiers using BD139, MJ11016, MJ11015 100W Guitar Amplifiers circuit using BD139, MJ11016, MJ11015 R1     6K8    1W Resistor R2,R4  470R   1/4W Resistors R3     2K   1/2W Trimmer Cermet R5,R6  4K7  1/2W Resistors R7     220R   1/2W Resistor R8     2K2  1/2W Resistor R9     50K   1/2W Trimmer Cermet R10    68K   1/4W Resistor R11,R12R47   4W Wirewound Resistors C1,C2,C4,C5 47µF   […]

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