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Dylan McKerchie — humbuckers

60hz Hum Vs RF or EMI Interference... There is a Difference

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60Hz Hum Vs EMI/RF Hum in your guitar comes from a few different sources. We discussed how shielding can minimize RF/EMI noise HERE. Electromagnetic interference exists anywhere there is electricity. This is compounded by the fact that anything with a transformer in it, TVs, Fluorescent lights, Power supplies, all emit a lot of EMI because they contain coils. This means that you can have noise from devices that neither share a circuit with your guitar, or are connected in any way. This is because this interference travels through the air. No matter how effectively you have shielded your guitar, you...

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Do Eddy Currents Affect Your Tone?

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What are eddy currents? Do they affect my tone? An eddy current is caused when there is a flat piece of metal perpendicular to the magnetic field. The metal doesn't need to be magnetic. These eddy currents are small spirals of current that are generated in the metal surface They work in opposition to the magnetic field that causes them. This causes an interference in the magnetic field. This causes a disruption in the movement of electrons in the winding wire. This in turn has the potential to cause changes in tone. What Does it Mean in my Guitar? If...

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Pickup Coil Wire 42 Vs 43... Whats the difference?

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Why Wire Type Matters... The most common types of pickup coil wire today are, 42 Heavy FormVar, 42 Plain Enamel, 42 Poly, and 43 Plain enamel and Poly. There are a few others too, but these are in your many of the most popular pickups that you are familiar with. What is the difference and why does it matter? Gauge- The number refers to the thickness of the wire. The larger the number, the thinner the wire. Insulation Type- Each of these wire types is insulated. Heavy FormVar adds about .0004" to the diameter. Plain enamel adds about .0002". Poly...

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Tone Caps... Highly Debated yet Very Simple

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Tone Caps... Highly Debated yet Very Simple Some people don't use their tone knob at all... Others constantly are fiddling with it. How does it work? First off, the tone circuit in a passive system is a filter. It can only cut frequencies from what is available from the pickups. Anytime we speak of "boosting lows" for instance in a passive system, we are cutting other frequencies to accentuate the lows. The tone circuit in your guitar usually consists of a pot that is used as a variable resistor that sends the signal through a cap (filter) to ground. The...

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250K Vs 500K Pots... which do you choose?

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One of the hottest topics on the internet is 250k vs 500k pots and why we choose what we choose..... The answer seems simple... But WHY? The common answer to this debate seems easy. 250k pots for single coils and 500k for humbuckers. Let's get into why these have become the most common choices. Basic Rules of Electronics 1. Electricity always takes the path of least resistance to ground... ALWAYS. 2. Anytime there is a path to ground for your guitar signal, high frequencies are the first to go. The simple guitar circuit would consist of the pickup, two wires...

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