Simple microphone preamplifier
Posted on Mar 17, 2013
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.....
.
When the "ON/OFF" button is pressed once, the equipment goes on and stays on. It goes off when...
This design for a headphone amplifier arose after the purchase of commercial equipment with...
Most operational amplifier circuits require a dual-polarity power supply - one having +V and -V....
The µA2240 may easily be configured as a programmable voltage controlled timer with a minimum...
With a single IC, you can build a simple, reliable auto burglar alarm or a similar alarm. See...
If your ear is good, you can use this IR-pulse-to-audio converter to troubleshoot infrared...
It is a 32 Channel, 40Mhz, fully PCcontrolled TTL/CMOSlogic analyser with internal/external...
This circuit was in EDN`s "design ideas" section in the March 5, 2007 issue. It`s a fairly simple...
The 15V dc supply is obtained from a nominal 230/24V center tapped ac transformer (T1) and a full...
This circuit is designed to check the condition of lead-acid and gel cell batteries with...
This is the circuit diagram of the simplest single chip AM radio. The circuit is designed around...
On the poles, the plane of the pendulum swing would make one rotation each day. On the equator,...
A while ago i run across this document which apparently tells how to wire mosfets in series to...
This PSU has been especially designed for current-hungry ham radio transceivers. It delivers...
This could be achieved by monitoring separate points either through the same recorder, or worse...
Tomas OK4BX came prepared with an excellent slideshow presentation of the DDS-driven MEPT that he...
Using an ATmega 2560 and therefore the heart of Arduino, we have developed a universal remote...
characters left: