Simple Amplifier/Preamplifier circuit
...
50W Amplifier using ICL8063
...
10 W Audio Amplifier
This circuit is a general-purpose 10-W audio amplifier for moderate-power PA or modulator use in an AM transmitter. With higher voltages and a change in bias re...
800w power amplifier mosfet
...
Video Amplifier Circuit
The video amplifier in the diagram is a well-known design. Simple, yet very useful, were it not for the ease with which the transistors can be damaged if the po...
Audio Amplifier Circuits
...
70/40 Watts Hi-Fi amplifier
70/40 Watts Hi-Fi amplifier is most advanced, and best Hi-Fi amplifier having almost 0% distortion circuit diagram and description of hi-fi amplifier.hi-fi ampl...
Control an Amplifier With a SqueezeBox
If you`ve got a Squeezebox then you`ve probably got an amplifer to go with it. Having to get up and turn the amp on and off when you need it is just far too ted...
VHF Antenna Amplifier Circuit Using BFT66 Transistor
Here`s a design circuit for very simple antenna amplifier electronic circuit project can be designed using this circuit diagram. This antenna amplifier electron...
led How do I amplify a dc voltage that is too weak to trigger the base in a transistor
Take the voltage output from a 3. 5mm audio jack and have it light up an LED according to it`s voltage. I was going to attach the left audio cable to the base o...
amplifier Amp measures board twist (unfortunately!)
A board design that is supposed to measure a loadcell. We have finally tracked a system accuracy fault down to the amp IC. When we twist the board, the amp IC c...
amplifier How to improve nasty form clipping behavior in differential input stage
The amplifier in the following schematic, when simulated, shows that it can cleanly amplify a signal with 0. 1V amplitude to 10V. When driven with a larger sign...
Difficulty with Common Emitter Amplifier
Take the input from a microphone and use it to power an LED, so that it`s off at ambient sound, and (the peak brightness) gets brighter with noise level. It`s o...
noise LM386 audio amplifier not amplifying
First I tried connecting the circuit to a 9V battery. (Multimeter reads around 8. 3 Volts, which is in the operating voltage range of the LM386 as per datasheet...
How to calculate the resistors and capacitors for an amplifier circuit
The circuit above is the canonical AC coupled common emitter amplifier which is typically used as a linear amplifier, not a switch that "turns on" when the inpu...
sound simple audio amplifier
The quality sound was terrible, and suddenly it stoped working. Can anyone explain me in which part of the circuit i did something wrong any sugestions to impro...
amplifier How does this circuit attenuate high frequencies
This circuit could be used as a treble control circuit with high frequency gain occuring when R3 is set so a=b (we`ll call this k=0), and high frequency attenua...
amplifier LM386 amp circuit lag
I`ve got a button which I use as a push to talk switch. This works for the most part, however when I press the button it takes a good 5 seconds before I hear an...
Simple Audio amplifier Using Transistors
Build a simple audio amplifier using transistors. I know there are IC designs specifically for the task. But i want to use transistors so i can learn how to use...
Stereo Audio Amplifier with TDA2616
I built my first power amplifier when I was still in secondary school. The circuit was made of transistors, didn`t provide much power and had an ugly PCB. Aroun...