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Re: I want to start building, guide me?
Posted: Wed Nov 07, 2012 11:36 pm
by greyscales
I recommend checking this out first of all:
http://www.madbeanpedals.com/tutorials/ ... ng_MBP.pdfYou can deal with the ground different ways, as long as every ground is connected somehow. What I do is connect the ground wire of the dc jack to the sleeve of the input jack, from the sleeve to the switch, from the switch to the circuit, volume 1 to the closest ground (usually on the board, as you could on this one right next to the wire from the switch).
The anode of the LED goes to the switch. The cathode obviously goes to the dc jack (with current limiting resistor).
Re: I want to start building, guide me?
Posted: Fri Nov 16, 2012 2:50 pm
by stripes
i just did the BYOC reverb and everything works as it should... (except the LED is for some reason always on), but there is some background white noise when I turn the reverb knob up, increasingly. and the stopswitch makes a crackly sound when I turn the pedal on. not sure if there is something to be done about this or if that's just how the pedal is. any ideas?
Re: I want to start building, guide me?
Posted: Fri Nov 16, 2012 3:04 pm
by Officer Bukowski
Guts, yo?
Re: I want to start building, guide me?
Posted: Fri Nov 16, 2012 3:45 pm
by stripes
unfortunately i can't get to the underside of the board anymore without un attaching the dc jack and the brick, but before i secured all of that the solder points unders there all looked good.


Re: I want to start building, guide me?
Posted: Fri Nov 16, 2012 3:56 pm
by skullservant
Check the glob of solder between pads 4-3 on the reverb brick- are they attached?
Everything else looks pretty good!
Re: I want to start building, guide me?
Posted: Fri Nov 16, 2012 3:57 pm
by stripes
skullservant wrote:Check the glob of solder between pads 4-3 on the reverb brick- are they attached?
Everything else looks pretty good!
nope - not attached
Re: I want to start building, guide me?
Posted: Fri Nov 16, 2012 4:01 pm
by stripes
also fyi the noise seems to be directly associated with the "reverb" pot
Re: I want to start building, guide me?
Posted: Fri Nov 16, 2012 4:09 pm
by skullservant
Ahh. Maybe the pot is bad? Seems like it could be an option
Re: I want to start building, guide me?
Posted: Fri Nov 16, 2012 6:56 pm
by stripes
That would be terrible!

Re: I want to start building, guide me?
Posted: Tue Dec 04, 2012 2:03 pm
by stripes
so i let the reverb sit for a few days while i was busy with other stuff, and when i plugged it into my pedalboard just to try it out again, there is no more noise and it sounds really awesome. i'm sold on spring reverb!
i'm doing the madbean tremolo right now (double flush)
http://www.madbeanpedals.com/projects/DoubleFlush/docs/DoubleFlush.pdf, but i ran into some problems..
i have the whole thing wired but outside of an enclosure, and when i plug it in the light comes on and responds to the rate knob, but i'm not getting ANY signal through the curcuit, even bypassed. here are some pictures:



Re: I want to start building, guide me?
Posted: Tue Dec 04, 2012 2:05 pm
by greyscales
Easy solution, stripes: Ground the output jack. In an enclosure, it is grounded against the metal. Outside it isn't, so it won't pass signal.
Re: I want to start building, guide me?
Posted: Tue Dec 04, 2012 2:22 pm
by stripes
okay - that worked, but now i get no signal with the pedal engaged.
Re: I want to start building, guide me?
Posted: Tue Dec 04, 2012 2:34 pm
by skullservant
Is the input wire touching the ground wire on the board? That'd be doing it- essentially you're shorting the circuit to ground, so no sound is able to pass
Re: I want to start building, guide me?
Posted: Tue Dec 04, 2012 3:46 pm
by greyscales
skullservant wrote:Is the input wire touching the ground wire on the board? That'd be doing it- essentially you're shorting the circuit to ground, so no sound is able to pass
Yeah, that's what it looks like here:

Separate those if they are connected.
Re: I want to start building, guide me?
Posted: Tue Dec 04, 2012 5:13 pm
by stripes
greyscales wrote:skullservant wrote:Is the input wire touching the ground wire on the board? That'd be doing it- essentially you're shorting the circuit to ground, so no sound is able to pass
Yeah, that's what it looks like here:

Separate those if they are connected.
i'll separate those and see if it works , but why did the wiring diagram tell me to do that? or am i misunderstanding..?
