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It’s a Donner DT-1. For an inexpensive tuner, it got very nice reviews. My searching doesn’t reveal any indication that it is buffered. But it sure cuts the noise.

Tks! See my reply to Brett above. I do have a separate power supply for my pedals (except the tuner - interestlngly, when I skip the tuner and plug into the first pedal (wah), I get a buzz. WIth the tuner in the chain but not on, no buzz).

Noise is like hiss, Using a Les Paul with humbuckers. Noise was definitely mostly coming from the wireless system. Pedals are much quieter with a cable instead. Still wonder if a buffer would help but as long as I use a cable, it's very tolerable.

Well, I discovered a big noise generator. My Lekato wireless system. Plugged a cable in and noise reduced notably. Not entirely but much better. Would a buffer help even more?

Jeff C here. You may be thankful or disappointed that I am not in the midst of another marathon pedal problem solving odyssey. I actually built the Transcendence Boost pedal with only one minor error that I quickly rectified. Yah. So why did I build that particular pedal? Well, as is not...

Success! Lights right up! Thanks so much! Rock on.

(y) So, no SW to V+ or ground to ground? Sorry, didn't see the bottom part. So, I don't connect the SW pad to the V+pad but to the LED (positive) pad, correct?

Will do! I know I don't get voltage to either V+ pad. I'll check tomorrow to see if I have ground and V+ reversed but I don't think so. I get continuity between V+ on the daughterboard and SW on the PCB and between grounds on both.

got it here..........https://www.tubesandmore.com/3pdt-board

Disconnected the power to the daughterboard and now get no voltage readings from the LED pad. Not sure where power would be coming into the daughterboard from……..

no worries! I wish I had half your experience!

Too funny! I connected power to the daughterboard based on Buddy’s guidance, which has always been spot on…… so, if I disconnect the power to the daughterboard, what should the voltage be at the resistor and LED pads on the daughterboard?

So, I soldered power to the daughterboard and put a tested 4.7k resistor in the correct place in the daughterboard. Then I ran two wires from the LED pads on the daughterboard to the (new) LED and it burned it right out. I tested voltage on the daughterboard and it’s getting 9+v, as are both...

I’d have to drill another hole in the enclosure much closer to the switch……but that’s an option!

Tks So much! So, just putting a jumper from V+ to ground on the daughterboard board won’t do it?

😂😂

So, still can’t get that LED1 to light up. There is continuity from the LED pad to R102 and from there to the SW pad. That pad is connected to the V+ pad on the switch daughterboard, not the ground. And the V+ pad on the daughterboard is connected to the V+ pad of the daughterboard incoming...

Ah, I see. So it doesn’t even get the 9v unless it’s grounded. I was always checking the voltage with the switch on. Once I switched it off, 0 volts at the LED pin. But then you knew that already……..😆

👍 On the schematic it goes to the switch before going to ground, so if the switch is off, there is no route to ground……sorry to belabor this, just curious……….

Also, there is continuity between R102 (4.7k) and the SW pad and also to the K pad for LED 1, but how does that do the LED any good by coming after the 9v hits the LED?