This is a quick video comparing linear and audio/log tapers for a tone control. I’m comparing a Bourns 500k audio taper pot (PDB241-GTR01-504A2) with a Philmore PC27 500k linear taper pot. The capacitor is a .022uF Orange Drop (225P100V 223K). I’ve wired the neck pickup directly to the jack with the tone pot in parallel, just like a normal guitar circuit, but with no volume pot. More
- Gear Diary
- Guitar Circuit Wiring
- Guitar Potentiometers
- Guitar Preamp Cable
- Guitar Tone Capacitors
- Guitar Treble Bleed
- Pedal Building
- Photo and Video
- Semi-Hollowbody Electronics
- VOX AC15
In this video I demonstrate how to modify a tone pot to be no load, for true bypass. The change in brightness is subtle, but worthwhile. Don’t be afraid to open up your pots and have a look – it’s pretty easy to do. But be forewarned, some pots are easier than others to put back together! These Bourns pots are a bit dodgy, as you can see in the videos. In contrast, the CTS EP086 is very nicely constructed and easy to reassemble (as I showed in How Pots Work: Disassembly and Exploration).
How do potentiometers actually work, and how are they built? In preparation for my tutorial on how to make a no-load tone pot, I dissected a couple pots (the same Bourns and CTS pots I’ve been looking at in my other videos). In this video, I explore the details of pot construction and how they actually work.
Next up in the series on guitar pots, I demonstrate how to enlarge the holes in your semi-hollow body top, to accommodate the larger diameter 3/8” pot shafts. Import guitars appear to use slightly smaller 8mm or 5/16” shaft pots.
Here’s part 2 of my potentiometer project. In this one, I compare linear and audio tapers, and compare the different audio tapers of Alpha, JS, Bourns and CTS pots. Then I go over a bunch of other factors to consider when buying new pots- tolerances, dimensions, shaft types, etc. More
I’ve read stories of people saying how their guitar sound miraculously better after just changing to a different brand of pots. Are they just imagining it? Let’s investigate.
In my earlier post Pickup experiment – bypassing electronics, I determined that entirely bypassing the electronics on my Epiphone Riviera P93 did marginally brighten up the sound. However, we need some volume knobs and a tone control – we can’t just remove them all! More