Mike preamp with tone control
Posted on Dec 15, 2012
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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.....
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A power transistor can be used to provide a high powered zener voltage from a low wattage zener....
Industrial applications sometimes require that power be only briefly applied to a load following...
The circuit diagram shows the original Kodax MAX Flash Unit including the semiconductors that...
A trip unit is electrically connected in parallel with a current limiting polymer element in...
A block diagram symbol is used to represent the PCB schematic on block connection diagrams. The...
Although you may well be the proud owner of the very latest NiCd battery charger, you may still...
I`ve had a few requests for a quiz circuit, so here is a 4 input design which can easily be...
This is a very useful and simple circuit diagram for amplifying weak signal from a capacitive...
This is a "beta release" schematic. Use at your own risk The idea is to add this circuitry to a...
The original firmware is usable on the amateur radio bands, but is not very convenient to use....
When no light, photocell PC1, PC2 was high resistance, Q1, Q2 is turned off the relay contacts...
Timing IC using long RS6445C constitute blocking oscillator As shown in the timing for the...
As shown, there are two corner frequency: Start frequency attenuation transition of several...
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