Class A amplifier circuits
Here is Class A amplifier circuit. It have good sound Distortion-free. First use main are transistors only. Second: 5W output use IC-low noise IC,MJ2955 power transistors
NE5532 datasheet; Dual low noise operational amplifier
NE/SA/SE5532/5532A: Internally-compensated dual low noise operational amplifier The 5532 is a dual high-performance low noise operational amplifier. Compared to most of the standard operational amplifiers, such as the 1458, it shows better noise performance, improved output drive capability and considerably higher small-signal and power bandwidths. This makes the device especially suitable for application in high-quality and rofessional audio equipment, instrumentation and control circuits, and telephone channel amplifiers. The op amp is internally compensated for gains equal to one. If very low noise is of prime importance, it is recommended that the 5532A version be used because it has guaranteed noise …
Small class b audio amplifier circuit diagram
Here are three Simple Class B Power Amplifier using ICs and transistors. The main idea they use low voltage supply and Cheap parts. We think them will useful for you. Class B Audio Power Amplifier, 15W using NE5532 and transistors When feed power supply reach the circuit and feed input signal come in. The sound signal change C1 and R1 for signal coupling and eradicate noise oscillator go out. From that time go to reach input pin 3 non inverting of IC1. Which be op-amp IC boost up signal give the power goes up in order to go to drive …
Pre MIC (microphone preamplifier) 2 CH by IC NE5532 or LF353
This be Pre Mic circuit or Microphone preamplifier circuit model 2 CH. By this circuit uses integrated number circuit NE5532 or LF353. It perform enlarge sound signal from Dynamic Micro phone give the power goes up for subsequently submit to go to still stereo power amplifier circuit next. This circuit be of good quality good sound, because of use the integrated circuit decreases the noise, but should use the fire feeds +12V GND -12V with. The VR1 and VR2 perform fine decorate the sound. The detail is other and PCB see in a picture below. Circuit Pre MIC (microphone preamplifier) …