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Another Lune. Built per documentation, no intentional mods other than status LED location. Did have to file the leads on a couple of pots for the 5mm Rate LED housing I chose, shown in the photos. Tayda drilled and UV printed enclosure. Artwork was freely downloaded .png image that I worked...

I've had good luck using a potentiometer for this in the past. Just dial in the brightness you like then measure the resistance of the pot, use an appropriate resistor for permanent installation.

With all of this in mind I have to think distortion is not the cause of the difference they are hearing. Then what is the cause? I'm at a loss. I was thinking maybe the resistors have some capacitance or inductance that was a possible cause. So I got out my (relatively inexpensive) LCR meter...

Yes I do understand we currently have a big capability of analyzing audio, but aren't there advances made frequently that continually advance our capability? This is exactly the point I'm making. Another way of thinking about subjective is that it cannot be measured- yet. Just because...

People can be fooled, no doubt, especially when it's your intention to fool them. Alan Funt did this time after time... But proving a person, or even a group of people, can be fooled doesn't prove that no one can hear differences between various components. You proved you can easily fool...

RG Keen is truly a wealth of experience gained knowledge and an inspiration for how freely he shares it. Thanks @owlexifry for posting that. @darwin999 very nice write up. I believe you are absolutely right about noise, the science backs it up. I agree with most everything thing said with...

The common name is the resistive element in the resistor. Metal film is just that, a thin film of metal or metal oxide that is sized (cross section & length) to provide the resistance required. The film is applied to a ceramic core spirally and topped with a protective coating. These are the...

Too bad it isn't 42 or 44 ga, that's pickup winding wire... Very generous of you to offer this!!

<Raises hand> I do!

In that picture I don't see ANY carbon  film resistors, only metal film and carbon composition. But yeah, that's a hilarious description for the resistors. Makes me wonder if he hasn't solved the mystery of time travel in order to age his resistors?

If you have it on a breadboard you might try the B10k with a 10k resistor tied across lugs 2 & 3, then across 1 & 2 to see if either one works for you. The overal pot resistance will vary from 5k to 10k depending on wiper position. I'd be interested in the results if you do try this.

In this circuit the overall pot value needs to stay the same as varying it will impact how Q3 operates. Thinking about it, if the overall value of the pot were to change it would have an interesting effect on Q3, whether it's a desirable effect would be up to you. Might be worth experimenting...

I don't believe you'll be able to keep the overall value of the pot at a fixed value using this method. The overall value is going to change as the wiper is moved any time you tie an end lug to the wiper via resistor or wire. To the best of my knowledge about all you can do to keep the overall...

Scratch that last post

Check out the calculator on the link @pbrommer provided. It uses two resistors, one to lugs 1 & 2 the other to 2 & 3. The two in series will add up to 10k in parallel with lugs 1 & 3.

If you do the math at, say, every 10% of the 10k pot measuring lugs 2 & 3 with a parallel 10k resistor connected to these same lugs you get: 0k || 10k = 0k Loudest, wiper at top 1k || 10k = .91k 2k || 10k = 1.7k 3k || 10k = 2.3k 4k || 10k = 2.9k 5k || 10k = 3.3k 6k || 10k = 3.8k 7k ||...

I cannot see the labels on the red & black jacks across the bottom. I need to be able to read them.

If you haven't already see edit to my first post

No

The decoupling cap  isolates DC and depending on uF value can filter certain audio AC frequencies. Type of cap (electrolytic, film, ceramic...) can (depending on who you talk to) effect tone. Edit: capacitor types can be interchanged as long as value and voltage ranges are adhered to...