What you need to know about electric guitar pickups

The search for the sound we want to achieve is one of the most important journeys we can undertake on our path as musicians, since it results in the letter of introduction as artists to the world. Ever since we got a guitar, an amp and our first pedal, the possibilities become endless, as does our thirst for the perfect tone.

But there is one detail that we overlook when it comes to getting the pedals we want, and that is how we are going to power them! This is an issue that could literally ruin your sound, for all the many dollars it cost you. It is very common that we find ourselves with a lot of money invested in pedals, but very little in a reliable, robust and efficient electrical power source to satisfy the demand of little toys with knobs and lights.


Voltage (also known as strain or potential) can be explained as an electrical force that promotes the flow of electrons through a conductor. If we get philosophical: the voltage exists between two points, it does not go through a cable. It is measured in volts (V). The types of voltage, depending on the type of current, can be classified as direct current voltage (Vdc) or alternating current voltage (Vac). Pedals work with the first type.


The polarity in direct current is basically the direction in which the current travels. On pedals, it is common to have adapters with a negative center, which indicates that the current leaves the metal exterior of the adapter and returns through the inner center of the adapter.



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