electret microphone amplifier
Posted on Feb 4, 2014
Related Circuits
New Circuits
-
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
.
I use the lm10 IC because it has a reference voltage and that?s useful for dc power supply. With...
The supply receives -20 V from the rectifier/filter which is fed to the collector of the...
This is one of abounding accessible variations for a Symmetrical SRPP Preamplifier based about...
This is a continuation of my previous article regarding class d amp using 555 timer chip. Looking...
Crap, the sensor on my clone is low resistance and the replacement heater is 45 Ohms. Is there...
A single chip circuit for Echo & Delay. If you can modify a mic mixer circuit, you can easyly use...
Various embodiments of the BB metal detector have been published, and it has been widely...
This article continues the AT90S4433 Microcontroller series. I suggest you to read the previous...
This is a very simple RF transmitter circuit that consists of the Holtek HT-12E encoder chip and...
This small transmitter can arrive the more than 1 km in favorable conditions of emission. The...
Although people think that now use the timer make sense amplifier OP is not large, but after the...
As shown by ISO122/124 -type filter circuit shown in FIG. ISO122/124 modem internal oscillator...
As shown for the low-cost integration circuit. Integrator operational amplifiers are generally...
As shown in FIG measuring temperature alarm circuit to the Treasury. The device consists of...
characters left: