It is a 2x56W power amp based on National Semiconductor's LMT chip they come in 2 versions T and TF the latter having an insulated case , this type of amp is also known as a gainclone because it is an improved copy of Gaincard amplifier. All Rights Reserved. If you are powering more than 2 channels a VA or VA transformer is recommended. The capacitors used after ufuf 50V will bump this up to around 30V. NOTE: the two grounds shown are to be joined together to form the 0V line which is also connected to mains earth.
|Published (Last):||10 December 2011|
|PDF File Size:||14.21 Mb|
|ePub File Size:||6.1 Mb|
|Price:||Free* [*Free Regsitration Required]|
It is a 2x56W power amp based on National Semiconductor's LMT chip they come in 2 versions T and TF the latter having an insulated case , this type of amp is also known as a gainclone because it is an improved copy of Gaincard amplifier. All Rights Reserved. If you are powering more than 2 channels a VA or VA transformer is recommended.
The capacitors used after ufuf 50V will bump this up to around 30V. NOTE: the two grounds shown are to be joined together to form the 0V line which is also connected to mains earth. You will require one of these circuits for each speaker. Things to take note when assembling: 1. All the grounds including input negative and speaker negative get joined together on the PCB and to the 0V point which goes to the mains earth. Never run the amplifier without a heatsink attached to the LM chip s 3.
Test the voltage produced by the power supply before connecting to the amplifier circuit and ensure that it is correct. Do not ever allow the heatsink to short to ground. TF versions can be directly screwed to the heatsink with thermal grease applied.
Always double check your soldering on the amplifier and power supply before connect to power. Use shielded microphone cable from the RCA connectors to the volume pot and to the amp pcb and keep these wires as far away from the AC line otherwise you'll get funny humming noises This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils and inductors.
The circuit includes an auto ranging as well as reset switch and produces very accurate and stable readings. The output waveforms can be both amplitude and frequency modulated. The meter is a perfect addition to any power supply, battery chargers and other electronic projects where voltage and current must be monitored.
It is a very useful bench test equipment for testing and finding out the frequency of various devices with unknown frequency such as oscillators, radio receivers, transmitters, function generators, crystals, etc. It can be connected to any type of stereo audio source such as iPod, Computer, Laptop, CD Player, Walkman, Television, Satellite Receiver, Tape Deck or other stereo system to transmit stereo sound with excellent clarity throughout your home, office, yard or camp ground.
It also analyzes transistor's characteristics such as voltage and gain. It is an irreplaceable tool for troubleshooting and repairing electronic equipment by determining performance and health of electrolytic capacitors. Headphone amplifier is small enough to fit in Altoids tin box, and thanks to low power consumption may be supplied from a single 9V battery. It's small, power efficient, yet customizable through onboard 2 x 7 perfboard that can be used for connecting various sensors and connectors.
Arduino Prototype uses all standard through-hole components for easy construction, two of which are hidden underneath IC socket. You can control lights, fans, AC system, computer, printer, amplifier, robots, garage door, security systems, motor-driven curtains, motorized window blinds, door locks, sprinklers, motorized projection screens and anything else you can think of.
LM3876 Amplifier. Datasheet pdf. Equivalent
The LM can deliver 50watts of output power into an 8 ohm loudspeaker. LM has excellent signal to noise ratio and has wide supply voltage range. Other features of LM are output to ground short circuit protection, input mute function, and output over voltage protection, etc. Applications of LM are component stereo, compact stereo, surround systems, self powered speakers, etc.
LM3876 - Audio Power Amp (56W)