Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
hi i need a simple amplifier circuit that takes sound input through an electret microphone and amplifies it so that it can be out put loud through a 75 watt small buffer.impedence 8 ohms.i dont want to use high power supplies please.thank you
the circuit in the link sure looks easy enough but what did you mean by "Just feed that to a small IC power amplifer, such as an LM386"?.cant i just attached the output to some speaker?..mind me i have very basic knowledge of electronics![]()
And whats with this VR1(100K "A" taper pot)....its jsut a simple variable resistor right?..of range 0 to 100 kilo ohms?..i am sorry but this is the first time i am using these components in full fledge..before this i was jsut restricted to theories and definations
ohk thanx and what about "the preamplifier should be the input of this LM386 utility amplifier? "
well if its loud enough to be heard with in 1 meters of radius in a quite room then its all fine.what do you think?
and whats the theory behind the two variable resistors in the circuits i mean one in the preamp circuit and one in the power amplifier.i know one of them definately controls the volum but which one and what does the other do?