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Messages - NorthCoast

#1
Nice!

Really enjoy reading about the circuit development.
#2
Open Discussion / Re: Help with idea
March 31, 2025, 10:01:23 PM
If I understand what you're trying to do, I think you would need an envelope detector or something similar.

You might want to take a look at Aleph Null's One Chip Pony circuit here:

https://www.madbeanpedals.com/forum/index.php?topic=35279.msg335658#msg335658
#3
Open Discussion / Re: Help with idea
March 31, 2025, 04:23:44 PM
Yeah, take a look at this:



Vin would come off of the output of an envelope detector.

You could put a pot/trimmer in series with the R resistors to adjust the threshold (with pin 2 going to the inverting input of the opamp), or even replace one or both resistors with a pot/trimmer.
#4
Open Discussion / Re: Help with idea
March 30, 2025, 04:05:42 PM
Are you looking for something that is on/off, or something more gradual?

You could run the output of an envelope detector into a comparator if you want on/off.
#5
Open Discussion / Re: Help with idea
March 30, 2025, 05:41:09 AM
Have you looked at the Seamoon Funk Machine?

It's got an envelope detector going into a transistor.
#6
Build Reports / Re: PWM (Tim Escobedo Synth Fuzz)
March 27, 2025, 04:05:30 PM
Nice! That's a really cool circuit.

I've always liked small boards in large enclosures.

How do you like the sound with the LFO going?



btw, when you first posted this, I don't think it showed up in my 'Unread Posts'?? Just thought I'd mention it, I don't know if others have had that happen.
#7
Open Discussion / Pixelfed Image Hosting
March 16, 2025, 07:53:56 PM
I started using an image hosting platform called 'Pixelfed' and I thought I'd mention it here.

Pixelfed is free, open-source, and decentralized; no ads, no content manipulation algorithms, and no third party analytics or tracking.

You can take a look here:

https://pixelfed.org/
https://en.wikipedia.org/wiki/Pixelfed
https://thinglabs.io/what-is-pixelfed

I've been using it for a few months now, and I'm really happy with it.

Proof of concept:






#8
Global Annoucements / Re: New projects coming Feb. 15th
February 17, 2025, 04:59:47 PM
Quote from: madbean on February 16, 2025, 11:52:06 PM
Quote from: NorthCoast on February 16, 2025, 09:58:21 PMMay I suggest a gravy-themed project?

"I just built the Madbean WarmGravyBoat, it's awesome!!"  ;D

Consider it done.

Woohoo!!
#9
Global Annoucements / Re: New projects coming Feb. 15th
February 16, 2025, 09:58:21 PM
May I suggest a gravy-themed project?

"I just built the Madbean WarmGravyBoat, it's awesome!!"  ;D
#10
I don't know if this helps or not... but Boss used to stand up lots of resistors.

This is a DM-2.

There are some more pics here (and text in Japanese): http://www.matsumin.net/diy/bunkai/BOSS_DM-2/index.html


#11
General Questions / Re: Low Rider 2nd Octave down
February 02, 2025, 08:21:16 PM
Yes, it looks like you could just eliminate it. IC4 is there only for the second octave. Disconnecting IC4 from IC3 would not cause a problem.

You could also remove the parts in the second octave part of the circuit, C18, IC5, etc.
#12
Build Reports / Re: Oomph! Overdrive
January 15, 2025, 06:02:06 AM
Cool! Your demos are always very well done. The way you have the texture control and the clipping set up is very interesting.
#13
Open Discussion / Re: Colorsound wah Transistors
December 30, 2024, 02:15:23 AM
If you want something with a BCE pinout, try a 2sc828 or 2sc1815.
#14
A while back someone posted on here that he was... taking a class where he was learning to write software that would read documents? ...something like that. Anyway, he tallied up all the components used in madbean projects. I couldn't find the thread but I saved this. It should give you some idea of what values are the most common:






#15
Build Reports / Re: Troglodyte — Self Oscilating Reverb
September 19, 2024, 02:32:42 AM
That sounds fantastic. It's nice to see someone put this much thought into a reverb.