Circuit Project Electronic

3W HI-FI Stereo Amplifier by 2N1613
Thursday, July 23rd, 2009

TR1 and TR2 transistors funcitons as a direct link voltage amplifier. R6 resistor, D1 and D2 diodes determine standby current complement driver stage (Tr3/Tr4) and output stage (Tr5/Tr6). C3, C5, C6 and R3 will help to maintain stability. The amplifier is the input sensitivity is 400 ma at 4 ohm load and 12V supply and [...]

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HA1377 Bridge Amp BCL 17W
Thursday, June 4th, 2009

Circuit HA1377 Bridge Amp BCL 17W

PCB HA1377 Bridge Amp BCL 17W
This is circuit Car audio Amplifier(Bridge Amplifier BCL) ,
It use IC HA1377, Supply Volt 12V-13V. Speaker 4 OHM.
Nice Circuit and Easy to Build. Link
Other Link
Power amp 50W+50W for CAR
TBA820 Amplifier
300Watt audio amplifier HIFI by MJ15003-MJ15004 Transistor
The multi-purpose Amplifier using TDA2030

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TBA820 Amplifier
Wednesday, May 27th, 2009

A very useful audio amp in an 8-pin DIL package. The IC features a very low minimum working supply voltage of 3V, low quiescent current, good ripple rejection, no crossover distortion and low power dissipation. Maximum supply voltages is 16 Volts into 16 Ohms speaker, 12Volts into 8 Ohms and 9Volts into 4 Ohms. Link
Other [...]

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