Technical Data for Lollar Pickups
DC Resistance (Ohms)
- DC resistance (Ohms) is a handy but rough measure. The DC resistance of any given pickup will change based on other variables like temperature. For example if the pickup has been sitting in a sunny window and is warmer, the dc resistance will read higher. If you took that same pickup and stored it in your basement/practice room and it was cooler in temp, the dc resistance would read lower.
- The dc resistance will also read lower once the pickup has been installed into your guitar.
- DC resistance is actually just a measurement of how many feet of wire there is on a particular coil assuming you know what gauge the coil wire is.
- The size and shape of the coil can make a dramatic difference in ohms, for instance a Jazzmaster has a low wide coil compared to a Strat that has a taller narrower coil. A jazzmaster with the equivalent amount of turns a Strat pickup has will have a much higher ohm reading due to the extra length of coil wire around the perimeter of the wider pickup.
- Another factor is variation of copper wire. Although it's manufactured to rigorous specs, variation exists between spools of copper wire—including spools made by the same manufacturer and from the same lot number. A microscopic size variance that's still within wire gauge spec can affect dc resistance.
- Wire guage effects DC resistance. Larger diameter wire reads lower and thinner wire reads higher so so you can have a lower resistance coil with more output that a higher resistance coil.
- Equipment calibration can vary between ohm meters and can also change if your battery is low.
- Some people's body chemistry can cause false resistance readings if they are touching the meter leads while measuring coil resistance.
- Magnet "strength": To list magnet type like AL-2, AL-3, or AL-5 can be a little misleading. This is because we use our own proprietary techniques to gauss and/or de-gauss our magnets.
- AL-2, AL-3, AL-5 are not a measure of magnet strength. The formulas of different proportions of trace metals that are mixed with ferrous material. These different mixtrues give different magnetic and tonal qualities.
- Magnet type like AL-2, AL-3, AL-5 is also not a "stand-alone" thing. It has to be considered along with the type of wind and overall design of the pickup assembly. The results aren't necessarily "cut and dried." In other words, you still have to do R&D on the overall sound. It's the variables added together that shape the overall sound.
- When iron or an iron-based (ferrous) metal moves within a magnetic field, it has the capacity to induce a current in any conductive material also in that magnetic field (i.e. the copper wire coil). This is inductance—a measure of the physical property to induce a current. In general, the greater the inductance, the greater the output and greater the bass response.
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