Recent content by Rpschultz13

Short video of installing the screen & PCB assembly into the enclosure.

4 string bass

This is not the production PCB, similar schematic with RAMP and C9 deleted from production PCB. But the jack spacing is the same. 30mm between audio jack centers. As far as tedious, it's not tedious at all because all 3 jacks are soldered to the PCB. Takes about 30 seconds to install the PCB...

I guess I didn't realize this until recently but it looks like Q-tune and Peterson have a very similar spin rate, while Poly3 is about twice as fast and TurboTuner is WAY faster. I've used TT for so long it never bothered me. But now I think I like the slower rate.

And here is what the waveform looks like for a guitar string. See how complicated it is. This is the challenge of writing tuning algorithms. The frequency of a simple sinewave is easy with a common zero-crossing algorithm. But a vibrating string is much more complicated, you can see the...

Here is what the waveform looks like for a waveform generator:

Similar to the above, only with Q-tune "Techie" Tuning Style. Notice that the accuracy against a tone generator is generally +/- 0.05 Hz. With most of the strings this is <0.1 Cents, but as the frequency gets lower the distance between semitones decreases. And so even though the frequency...

The above using a tone generator

Here is a comparison video of Q-tune and the 3 top tuners IMO, from Right to Left: Polytune 3 in Buffer Monitor Mode Q-tune (1590b) in Buffer Monitor Mode Peterson Mini in Buffer Monitor Mode Turbo Tuner 300 Mini in True Bypass (Buffer not available)

Yes I agree. I’ve done just enough SMD to know I don’t enjoy it at all. SOIC-8 is fine, but just about anything else is no fun.

Here's a comparison of the width: TurboTuner with pancake jacks = 67mm wide Peterson with side DC jack = 60mm wide 1590b with 3 top jacks = 60mm wide Polytune and 125b shown as bigger versions. So Peterson has a great tuner, but Q-tune's screen is a LOT bigger for the same...

Yes, we've been told similar things from other EE types, we've looked into it. Currently the esp32 screen we are using is GPIO limited, we don't have any more GPIOs left. So we'd have to get a GPIO extender and/or other complications. This type of thing is possible and we are interested in...

Here are the schematics if you're interested... because PPCB'ers love schematics! (This will all be in the manual) PS Section: Relay and ESP32 input: Signal:

Tayda drill and UV is currently our enclosure path. I'm open to others, but the price is hard to beat.

Good point. We will certainly make the Tayda drill template(s) available. I’ll look into a “no enclosure” option.