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Hmm, you may be right about that. It could create feedback into the delay input, which can be controlled with sufficient resistance, but then you may not get the result you actually are hoping for.

A JFET buffer would have the lowest part/connection count. That's what I would try first.

Yup, that is correct. With SPDT and DPDT the connection pins are the opposite side of where the switch bat is pointing.

This topic has been moved to Tech Help.

http://www.madbeanpedals.com/forum/index.php?topic=19964.0

Thanks for the input so far. Keep it coming.

Let me say that the reason an apology is necessary is because 1) I do genuinely feel sorry that things went down that way and 2) it is important to show accountability when things go wrong. So, let's not focus too much on the necessity of it, if that's okay.

Hi Tom,

You have used a 470R for R2 instead of 470k. That's your problem for sure.

Other than that your build is looking very nice. Please double check your other resistor values.

I've had some time to reflect on the recent fallout from the Fall 2014 contest. I've also asked for and listened to opinions from some key forum members whose input I value very highly (not that I do not value any and all members here...these are just a few of my personal confidants). We had at least a few days of some very tense back and forth between members and moderators, contestants, et. al. about the perceived lack of communication and follow-through on the contest. There were a few exchanges I really hated to witness, and I know that I am not alone in that.

I would like to extend an apology to all members, and especially the contestants, for both the failure of the contest to be concluded in a reasonable time-frame and for the heated discussions that ensued because of it. The responsibility is ultimately mine and I take that seriously. Any failure here is my failure and no one else need take any of that on for themselves. And, I am not perfect by any means. I could have been more involved, and I could have framed some of my infrequent interjections in a more productive way.

I care very deeply about this community. It is basically a large part of my livelihood. I have my family, and I have my madbeanpedals family. I need both of these things to be whole and just as an argument with the wife or kid creates unease in my personal life, and argument, misunderstanding or feeling of disappointment by people in my madbeanpedals family also affects me in a very personal way. I think that many people here might feel the same.

So, please accept my apology on my behalf. There are many members here who are absolutely essential to the continued success and timbre of this small part of the DIY community. The thought of losing anyone from this community because of a failure on my part is very troubling. The idea that this could become something less than a supportive, welcoming and fun environment for all...well, it is pretty unthinkable. So, I will do better.

Moving forward, we need to decide whether or not we will continue to have contests and if we do how they might be framed to prevent any negative experiences like we recently had. My first inclination is to immediately try to right the wrong; have another contest, conclude it quickly and prove that this is something we can do successfully. But, perhaps that is not the thing to do...maybe a small cooling off period is in order to kind of smooth things over and reset naturally. I do think if we move forward with additional contests, it will be set up with solely a popular vote and one sponsor per contest, one grand prize. To me, that's the absolute minimal ingredient for success and we have done that before.

I will listen to any input, comments and/or criticisms you guys have to offer so feel free to express yourselves. Be assured that I do not take criticism personally....it's not about me as a person. It's about what we are here and what we want it to be. I would also like to extend a heartfelt thanks to Jacob for putting the contest together and concluding it successfully. It was a tough job, and even though it became bigger and more complicated than he imagined and it took much longer than we might have wanted, he saw it though. And, that matters.

Lastly...seriously? I didn't even place in the contest? This is a frikkin tough crowd. I mean...my box had frikkin lasers on it! And a wolf!

I never, ummm.....
I never built a,
wait no I did that in 2007.

Hmm....once I decided I would never...
shit, forgot about that thing I did anyway.


Well, that's it. I've done it all. Just not well.

Essentially everything has become about money. Everything. Which is stunting us as a species, because if it doesn't make money, it's not done.

50 years ago we landed a man on the moon. The motivations for this are well known (the other thing we like to do as a species...). BUT we decided to do it, our best and brightest were given the tools they needed and they showed us what we were capable of.

Space exploration will be largely commercial in the next century now that there are individuals and organizations that are wealthy enough to finance it without government entanglements. I don't know if that is good or bad, but that is how it's going to be. The first mission that successfully mines an asteroid will become the most profitable in all of human history. There's trillions of dollars out there waiting to be taken and as soon as it is feasible someone will do it. If we are lucky, the people who make this happen will have enough vision to use it for the betterment of mankind. If not, we are pretty well fucked. I mean, at some point these few people will acquire so much wealth it will become meaningless (I'm talking an order of magnitude beyond the richest person in the world right now) so it seems inevitable that it will work out for us in the end, somehow. Also, I'm not terribly cynical when it comes to "futurism" so I have a skewed viewpoint.

It could be noise from the test rig just as an isolated incident. Or, it could be a faulty part. An audio probe at key spots in the circuit might reveal more. The effect itself is no more noisy than any other op-amp type OD, I think.

This is existentially bothersome to me. 

I feel the same way really.

What has humanity become to create a 'Big Brother' real life shows with full media coverage to send people one way to a dustbowl while the real problems like war and starvation, diseases are just another sideline show and don't get tackled.

6 billion bucks for such a mission.

$ 25 saves eyesight for cataract patients in the Pacific nations for people that otherwise go blind.
http://www.hollows.org.nz/

I know where my priorities are to spend money.

This is so sad I can't even find a joke about it.

(time to get on my high horse here)
This seems like a false dichotomy to me. I don't see it as an either or situation. We have enough resources as a civilization and on this planet to do virtually anything. It only takes the will and then a commitment to follow through. There were just as many terrible things happening to humans all over the world when the Vikings came to the Americas (or Columbus if that's your thing) and when we went to the moon. But, we did it anyway. And, I do not think anyone would argue now that those explorations were mistakes...that humanity did not benefit as a whole from a few venturing out into the unknown.

Space exploration is paramount to the success and preservation of human beings when you talk in terms of hundreds or thousands of millennia. We WILL have to mine asteroids at some point in the future. We WILL eventually have to find a new home beyond earth. These things cannot be done until we take the baby steps. And the sooner we do that the sooner we will reap the benefits as a civilization. That's why I think it is important to do these things as soon as we are capable.

Mars is cool, but I'd rather go to Europa. Might as well make it worth the trip!

That will work just fine.

His review is very insightful into the idea behind the CF. But, I do think he gives a little too much credit in the idea that every small nuance was carefully planned. Some things are happy accidents. That said, he totally nailed how I would describe the CF in a much more eloquent way. Huzzah for JustNick!

There's enough cross-over with the supposed "Peacekeeper" fet project I was working on that this could just become the PK project.

I took a stab at the layout, added a MIDs trimmer plus a couple other small mods. I'll see about prototyping it in the near future.

Yes. Here is how I would do it:

Reduce R4 to 12-15k. We need to give the Dry signal somewhere to go.
Wire pad1 of the Dry switch pad to lug3 of a 50kA pot.
Wire pad2 of the Dry switch to lug2 of the pot.
Wire lug1 of the pot the the Vb power supply. You can do this by soldering the wire directly to the + pad of C36, or you can follow the trace outlines of the PCB to find the most convenient spot.


We wire that lug to Vb so that we do not have to put coupling caps between the two parts of the circuits. Now, all points of the new pot are attached to about 4.5v so there will be no scratchies when it is turned up and down.