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Great reference thread: https://forum.pedalpcb.com/threads/just-curious-125b-vs-1590b.22325/

I created another thread in this section asking about enclosure size. Would love your input. Thanks!

We designed Q-tune to fit in either 1590b or 125b, the PCB with top DC and top jacks is the same for both. While they aren't that different, the 125b is bigger. I'm wondering if anyone will want the 125b or if everyone will opt for the 1590b. 125b: 66mm wide, 122mm long, 39mm tall 1590b: 60mm...

Sounds fine on my iPhone🤷‍♂️

TT means TurboTuner. Yes! Comparison vid coming later this week: 1) Q-tune 2) Turbo Tuner 3) Peterson Mini 4) Poly3

1) Accuracy is tough to measure because when a string vibrates it varies +/- a few cents. So a tuner that advertises 0.1 cents, is incredibly difficult to measure that. We feel that if you are within +/- 1-3 cents, you are very in tune. That said, using a reference tone, Q-tune is as accurate as...

This is a great comment. Tune in to the live stream event Thursday, we'll talk about this a bit.

Thanks for the feedback! We totally get that Q-Tune isn’t in the same price bracket as something like the PolyTune 3 — and to be fair, that’s a great pedal. But Q-Tune is a different kind of product: it’s DIY, and it offers more features than any tuner we know of. It's made for builders and...

The design is done, last round of prototypes coming in this week. Getting our web site, inventory, etc set up. Pre-order (initial 20 kits) first week in June. Ship within 45 days, but likely by the end of June. Introductory price: $149. Full price $179. Live stream event on YouTube this...

Last summer, @joulupukki and I began developing a tuner pedal with the intention of making it a DIY thru-hole kit. Since we both frequent this site and have benefitted from advice from many of it's members, we wanted to share here first. Stay tuned;)

Yeah Kevin gave me some ideas. So one workaround I found was to: 1. make the board larger. 2. router 3. make the board smaller, creating the castellated holes. 4. accept DRC Dimension errors. I did this, and sent the file the JLC. It seemed to take it fine. But the upcharge on castellated holes...

I’m trying to do castellated holes in Eagle. I get a DRC Dimension error which I can approve. But the auto router won’t route the holes. Any ideas?

The picture up in Post 6, after adding adding the 2nd buffer, I am getting some switch pop. I'm using a momentary switch to a relay, so the pop is likely a voltage difference somewhere. And it's interesting, it gets better the more I switch it, like a capacitor discharging. In the below...

I need (prefer) thru hole

Based on other PPCB threads, the J113 seems to be an acceptable alternative to the J201. 10x cheaper.

Just to clarify, when I say TUNER, it isn't a stand alone tuner that you buy. We are designing a tuner pedal using a CYD (Cheap Yellow Display) with an onboard esp32 MCU. So it doesn't have any impedance other than what I give it. Last night I tested this using 2 J201's I had. It worked. C1...

So then like this, using the other side of the relay. Monitor mode bypasses that side of the relay but requires a buffer.

So then like this. Other side of relay disconnects that portion of circuit when in TB mode.

I'm developing a tuner pedal, and trying to give the option of True Bypass or Buffered Bypass. The JFET splitter/buffer I'm copying from AMZ (PPCB uses similar). I've always understood that TB means the signal doesn't go through any IC's, chips, or anything that is powered. But can go through...

I guess one question I have for this is, in TB mode, is this still considered True Bypass? Signal is still flowing through C6 and into the tuner through the Tuner Buffer. I would think the buffer creates a high enough impedance such that it doesn't affect the signal going through the True Bypass...