Troubleshooting help please?

Pedal manufacturers in here...

Moderators: Slowy, Capt. Black

User avatar
Bg
Site Admin
Posts: 34784
meble-kuchenne.warszawa.pl
Joined: Fri Sep 05, 2003 12:13 am
Location: Auckland
Has liked: 1700 times
Been liked: 2515 times

Re: Troubleshooting help please?

Post by Bg »

re-iterating previous posts. Check you've fully cut the tracks and check you've not shorted between them. They are the most common issues with veroboard. And make sure you cut the ones under the two resistors.
you JUST KNOW some Tory wanker has thought of this idea already. Probably getting the inspiration whilst fucking a dead pig.

User avatar
Snarblinge
Steinberger
Steinberger
Posts: 225
Joined: Mon Apr 27, 2009 7:39 pm
Has liked: 20 times
Been liked: 23 times
Contact:

Re: Troubleshooting help please?

Post by Snarblinge »

What transistors did you use? Could be bias issue.
b.

User avatar
Jay
Vintage Post Junkie
Vintage Post Junkie
Posts: 3844
Joined: Sat Sep 25, 2010 9:35 pm
Has liked: 694 times
Been liked: 537 times
Contact:

Re: Troubleshooting help please?

Post by Jay »

Add Fuzz Control Pot....
Fuzz CD & VB.JPG
Fuzz CD & VB.JPG (148 KiB) Viewed 1549 times

User avatar
calling card
Vintage Post Junkie
Vintage Post Junkie
Posts: 3372
Joined: Fri Nov 23, 2007 10:56 am
Location: Hoodoo dump, BOP
Has liked: 498 times
Been liked: 202 times

Re: Troubleshooting help please?

Post by calling card »

If it were me I'd have fucked up the transistor legs, this also why I don't make these things. Except if push comes to shove.
"Well the rain aint fussy 'bout where it lands..." - Rory Gallagher

User avatar
Shimmer
Steinberger
Steinberger
Posts: 209
Joined: Tue Jul 25, 2017 10:47 am
Has liked: 217 times
Been liked: 48 times

Re: Troubleshooting help please?

Post by Shimmer »

I'd check the transistor pins.
Can be hella confusing even for similarly named transistors....
http://www.analogzoo.com/2015/03/beware-the-p2n222a/
I want all the pedals!

NippleWrestler
Vintage Post Junkie
Vintage Post Junkie
Posts: 954
Joined: Sat Jan 02, 2016 5:05 pm
Has liked: 17 times
Been liked: 264 times

Re: Troubleshooting help please?

Post by NippleWrestler »

Problem solved.

The circuit was fine. Everything was wired fine except for c3. The diagram says to omit this part, and then in the comments the designer said that omitted parts need to have a jumper in their place. Jvpp snipped the jumper and there's the sound.

'Easy' as that.

Now what I have is a fuzz with massive volume and massive treble. Too much on both fronts so I soldered a cap between lugs 1 and 2 of the pot to roll off the nastiness and ran a resistor in series from lug 3 to the switch. Now it's more where it should be and has gone from being a thermonuclear device of raspy buzz to something slightly more tamed.

It's a fun world this pedal building. It almost makes it worth the burned fingers.

User avatar
Bg
Site Admin
Posts: 34784
Joined: Fri Sep 05, 2003 12:13 am
Location: Auckland
Has liked: 1700 times
Been liked: 2515 times

Re: Troubleshooting help please?

Post by Bg »

NippleWrestler wrote:Problem solved.

The circuit was fine. Everything was wired fine except for c3. The diagram says to omit this part, and then in the comments the designer said that omitted parts need to have a jumper in their place. Jvpp snipped the jumper and there's the sound.

'Easy' as that.

Now what I have is a fuzz with massive volume and massive treble. Too much on both fronts so I soldered a cap between lugs 1 and 2 of the pot to roll off the nastiness and ran a resistor in series from lug 3 to the switch. Now it's more where it should be and has gone from being a thermonuclear device of raspy buzz to something slightly more tamed.

It's a fun world this pedal building. It almost makes it worth the burned fingers.
Yay simple as that :)
you JUST KNOW some Tory wanker has thought of this idea already. Probably getting the inspiration whilst fucking a dead pig.

NippleWrestler
Vintage Post Junkie
Vintage Post Junkie
Posts: 954
Joined: Sat Jan 02, 2016 5:05 pm
Has liked: 17 times
Been liked: 264 times

Re: Troubleshooting help please?

Post by NippleWrestler »

Fuzzboy lives.

Image

This is the ritual fuzz circuit. It's crazy. Unity gain was at about 2 on the dial and from then on it gets insanely bright and insanely loud. You'd have zero trouble standing out in the mix but it literally hurts your ears when you're playing.

The only pot is volume. No gain control. It's always on and you're just attenuating, yet more treble comes in as you dial up.

It was too much.

I soldered a .047uf cap over lugs 1 and 2 of the pot which lowered the volume by about 60%, removed a lot of nasty treble and a great deal of ugly hiss.

Now it's basically a massively thick boost pedal which absolutely rocks on a drive channel at almost breakup. This way there's a clean with the volume back, then a bit of a chunky drive with the volume on and then this weird sludge thing with the pedal on. I've no idea what's happening electronically but it's great fun.

Image

The enclosure is from a pedal I almost made in 2009. I don't have the screws for it so masking tape is the next best thing. The lid is covered in electrical tape to prevent anything shorting out.

It works. It's ugly in a beautiful way.

Well worth the dicking around.

User avatar
Snarblinge
Steinberger
Steinberger
Posts: 225
Joined: Mon Apr 27, 2009 7:39 pm
Has liked: 20 times
Been liked: 23 times
Contact:

Re: Troubleshooting help please?

Post by Snarblinge »

looks badass, well done.

what you building next?

(also, i now have a specific spot for enclosure screws, i write the enclosure number on the little plastic bag and chuck it in the thing, then at boxing time I know where they are. I have lost them before)
b.

User avatar
chur
Vintage Post Junkie
Vintage Post Junkie
Posts: 935
Joined: Sun Aug 02, 2009 4:05 pm
Location: Christchurch
Has liked: 126 times
Been liked: 142 times

Re: Troubleshooting help please?

Post by chur »

NippleWrestler wrote:It's a fun world this pedal building. It almost makes it worth the burned fingers.
iron.jpg
iron.jpg (95.7 KiB) Viewed 1377 times
No one ever died of hard work.. but why take the risk..

NippleWrestler
Vintage Post Junkie
Vintage Post Junkie
Posts: 954
Joined: Sat Jan 02, 2016 5:05 pm
Has liked: 17 times
Been liked: 264 times

Re: Troubleshooting help please?

Post by NippleWrestler »

Snarblinge wrote:looks badass, well done.

what you building next?

(also, i now have a specific spot for enclosure screws, i write the enclosure number on the little plastic bag and chuck it in the thing, then at boxing time I know where they are. I have lost them before)
There's a noise gate coming, then a Hyperion 2, then an eqd cloven hoof.

Post Reply