SOLVED Stripboard rat

[steviejr92]

ProCo / Fuzzdog 3-Band Rat

This is a request. Fuzzdog tweaked a the classic Rat circuit a few years ago. It includes the "Reutz mod", a diode selector switch for assy...

dirtboxlayouts.blogspot.com

So this is the stripboard layout I’m following for a rat here’s the problem I get bypass but nothing when engaged I checked the ic that’s fine I biased the 2n5457 correctly it’s at 4.6v. The only thing that is getting me is the wiring the board doesn’t have an output simply says wire output to volume leg 2 which I did but then how do I wire up the footswitch? I followed this diagram here

How To Turn A Populated PCB Into A Guitar Pedal | DIY Effects Pedals

One of my first failed DIY guitar pedal projects was when I purchased a PCB for a TubeScreamer. The board came with a detailed component list and putting it together seemed too good to be true. However, once I’d put all the pieces in place I didn’t have a clue how to actually turn it ... Read more

diyeffectspedals.com

One thing as well I didn’t wire an LED I know you don’t them for the circuit to work just thought I’d throw that in there.


Notice pin 8 and 9 are not connected the diagram is asking to put and LED for pin 8 and pin 9 you need an output for from the board the dirt box diagram doesn’t have one listed. Thanks for the help in advance.

 

[steviejr92]

I must have misunderstood. So C10 is not producing a full audio signal?

c10 produces full audio signal yes!

 

[fig]

That is just before the output. The only other component between full audio and the output jack is the VOLUME pot.

 

[steviejr92]

That is just before the output. The only other component between full audio and the output jack is the VOLUME pot.

C10 is producing audio right before the volume pot correct?

 

[fig]

According to the schematic I am looking at, yes sir.

C10 is directly after the 2N5458 to filter the DC from the signal (I think…it’s all above me).

 

[steviejr92]

According to the schematic I am looking at, yes sir.

C10 is directly after the 2N5458 to filter the DC from the signal (I think…it’s all above me).

you are very much right! I get audio from c10. i think that the problem is in the distortion area if you look at pin 2 of the ic you'll see it connects to a 100p cap then to the 1st leg of the distortion pot. i get low audio in that entire path but when i probe the 1st leg i get good audio coming through. so im thinking its in that teepee area i have going on it might be my teepee it might not im not sure here lol

 

[fig]

Ahh okay…I’m looking at the stripboard layout in your first post.

 

[fig]

I’d double-check those cuts in the area you spoke of.

 

[fig]

Like…under D2 for instance…not hard to miss.

 

[steviejr92]

Like…under D2 for instance…not hard to miss.

will do!

 

[fig]

 

[steviejr92]

re

Like…under D2 for instance…not hard to miss

so all my cuts and links are good! i reflowed the whole rail and nothing, when i plug it up i get sound coming through when everything is maxed and the eq does "move the audio". not getting any distortion at all. might just reflow every joint and see what happens

update: i probed from input to r1 i get audio from one side of the resistor should i be getting it from both sides?

 

[steviejr92]

Figured it out it I was missing a 22nf cap

 

[fig]

I must admit, I hadn’t considered missing components

 

[steviejr92]

I must admit, I hadn’t considered missing components

when i was going thru the schematic i found a 22n cap thats right after r1! as soon as i soldered it up got it plugged up and it worked right away!

 

[fig]

That’s what counts. Great work! How does it sound?

 

[steviejr92]

That’s what counts. Great work! How does it sound?

amazing i might do a demo just showcasing the limits this thing can do.