NSFW What's up with the buffers in cornish designs?

manfesto said:
Oh noes, a shitty designer may not feel welcome in an online space wherein his shitty design was exposed for its shittiness!
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My man, that’s half the problem. We’re shutting the door and attacking people on assumption before we understand the situation.

I think we both agree that blatant crookedness is something to be frowned on and it’d be great if commercial endeavours of all kinds had some rules around the “truths” they could sell you (the EU goes far already with this, albeit not in the pedal sector).

If I shut down every person selling a bad idea because I automatically label them a trickster, then I also block the people who are really trying. That’s not what I’d want for someone trying to grow and improve themselves.
 
KR Sound said:
Someone has to make a dual Splitter/Mixer pedal
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It'd be trivially easy to repurpose this one I've been messing with recently:

BBox1.jpg

Right now it has a TRS input for my banjo/dobro hybrid, magnetic pickup goes to a HPF/EQ/LPF box then returns to mixer, buffered piezo input from resonator goes straight to mixer. Everything is modular, so super easy to add a second buffer and send/return pair. Planning on doing one like that but with two sets of EQ in the same box too, but in something a little bigger then a 125B most likely. Running modulation and delay EFX on just the resonator side and then blending with the mag pup sounds insane, very sitar-ish.
 
szukalski said:
That’s not what I’d want for someone trying to grow and improve themselves.
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A - people trying to grow and improve themselves usually don’t, and certainly shouldn’t, enter new spaces with offputting arrogance and imagined grievances.

That’s a shortcut to getting (rightly) called out, fucking period.

B - people trying to grow and improve themselves are genuinely rare.

So rare, in fact, that if you see someone being douchey, you’re *way* more likely to have accurately assessed their character and constitution than to have mistaken their douchebaggery for “just a misunderstanding and they’re just trying to grow and improve themselves”.

And what is the upside to risking giving the benefit of the doubt to a snake oil salesman on the off chance he’s not aware his snake oil is bullshit? Even if he admits he was wrong, what are the chances he’s gonna change his business model and stop selling snake oil? Zero? Zero.

Big risk, no upside. No point taking that bet; I’d rather waste my luck trying to win the lottery than trying to convince bad designers to stop selling bad designs on the off chance that they happen to not also be bad people.

szukalski said:
My man, that’s half the problem. We’re shutting the door and attacking people on assumption before we understand the situation.
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C - what is there to “understand” about the situation, anyway? His arguments were about as inventive as his circuits, which is to say “not very”. We’ve all heard other versions of his grievances on DIYSB or FSB for literal decades at this point - same argument, different forum. Designers have jumped on those forums to complain that their circuits were traced, and they had their asses rightfully handed to them with the same arguments (and about the same level of grace).

The only person who didn’t “understand” the situation was 29Pedals dude, and that sure as hell isn’t our fault, it’s his.
 
Meanwhile, back in Cornwall ...

Can the Tillman Pre be configged as a buffer? Why yes, yes it can.

Tillman Preamp

Tillman Preamp
www.diystompboxes.com


Maybe...


But can the Cornish Buffer be made into a preamp?


Enquiring cat wants to know...
 
Feral Feline said:
Meanwhile, back in Cornwall ...

Can the Tillman Pre be configged as a buffer? Why yes, yes it can.
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This idea actually makes for a decent design starting point - if you limit the gain of almost any gain circuit to unity (or thereabouts, to make up for perceived volume changes due to EQ changes), you’ve created a buffer.

So if there’s a boost or overdrive you particularly like the sound of, tweaking it so it sounds good at unity and then replacing all the pot values with fixed resistors could be cool
 
manfesto said:
But let's be charitable - credit where credit is due, 29Pedals dude's "real" innovation is his "whatever" power supply (which in my estimation creates more problems than it solves, but-), not the analog circuits he hooks it up to.

Maybe if he wants so badly to be a power supply designer, he should go off and be a power supply designer (hell, sell your tech to Strymon or Eventide, high-draw DSP is an *actually* good use-case for a well-protected power supply).
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A while back I had traced the Skeptical Buffer and shared the schematic on Reddit, this forum, and my blog. The gentleman from 29 Pedals reached out to me on my Discord and Reddit on Aug. 29, 2023 and did not seem happy (understatement) for tracing the circuit and leaving out the power supply. He went on to criticize Robert for leaving out the power supply which apparently contributed sonically to the pedal. (Unsure if it does.) From what he wrote, it appears Robert was very close except for one vestigial component in the signal pathway and the power supply.

But most of all, he seemed discontent that the circuit was ever traced - which I find contradictory because the PCB on the EUNA itself sports verbiage encouraging a DIY ethos.

Regardless, I could tell he was distraught because he sent the messages at 5 AM in the morning, leading me to remove a lot of my posts regarding the EUNA/Skeptical Buffer.
 
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Laundryroom David said:
I’m not an engineer, so although this will sound like I’m being a troll, I’m genuinely curious: why would one want a power section to contribute sonically to an audio circuit?
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I do not know but the answer I received was: “The omissions from the power supply will decrease the headroom, slow down the transient response, and generally be significantly noisier.”
 
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