ProCo Rat Mod - Poison Noises Tutorial
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- Опубликовано: 29 сен 2024
- Edit: The wire bridge around 8:45 is not necessary. As long as you have one wire coming from each anode to cathode junction of the diodes it will work. By this I mean if you take a lead from each side of one of the diode symbols on the board, it will function the same. However if you want the extra contact points, or simply don't understand my subtext ramblings, following the instructions in the video will yield the same results.
This mod will give your distortion some thick low mids. All it requires is 3 Red LEDs, a DPDT toggle switch, and standard soldering tools and equipment. A great first mod for a beginner.
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8:36 This wire bridge is not necessary. This was an oversite on our part, as the board makes the connection already. Instead, you may simply use 2 wire connected to both sides of a single diode. Thank you, everyone, for pointing this out. A lot has been learned since the making of this video!
The wire bridge is not necessary, the diodes are on the same lead so just one wire each will do it
Thanks for the advice, Can you please advise where to get the blue plastic ring spanner and what its called ?
That's what I came down in the comments to try and find out! I have Tony Peper's Rocket Sockets, and they're amazing, but that blue one looks useful, too
Probably don't need four wires going to the board. One end of both diodes will be going to ground so there would be continuity between the two pads at that end. I'll bet that the other two pads have continuity as well as they'd both have to be in the AC signal path. Multimeter would confirm...
I successfully completed this mod on my own Rat pedal and it sounds so, so fantastic!
Thank you Poison Noises so much!
Last time I had a €100 pair of strippers was back in the 70s at my 18th birthday bash !
An off topic question, but what are you playing and what into. Can't get that sound even with the stock sound demo you showed.
Boards usually use 3mm LEDs, you use 5mm. Is there any difference, or is it just for convenience?
Just what I had lying around
Great video, if you had the LED's coming out the front of pedal, you would have best looking rat on planet. Just 3 extra holes 🤔
I'm starting to get into building and modding pedals. Very good video. Very informative and not boring! Thanks!
Are you saying soddering iron, rather than soldering iron?
Here in upstate NY they sound the same
Yo dude, thanks for making this video. Its really helpful for someone whose apprehensive about making expensive errors. Subscribed and excited to learn more.
Thanks so much for following! More to come.
You should try using an on off on switch too, so there's another no clipping mode.
Oh yeah! That middle position is loud in all the right ways.
Same wiring configuration as shown here only with a on off on? Any difference using green instead of red LEDs?
So, with this wiring, the "off" position off the switch would let the signal just run through ? Or would it act as a "kill switch", not letting any signal go through ?
@MrWsaenot I'm not that familiar with the Rat circuit, but you still have gain stages in the pedal, so it should act as a boost pedal. Again, not familiar with the circuit and I do not know if there are any clipping in the LM chips. But the presence of clipping diodes suggests that the chips act as gain stages.
no need to have four wires going to the LED spot on the PCB since they're electrically connected. Two wires are enough.
Thanks
Can you expand a little more on what you mean. Thanks.
@@ChasingTone666 The operation that starts at 8:40. You don't need those 4 wires. The pairs that are connected inside the heat shrink are already connected anyway. If you test with a conductivity tester or if you analyse the diagram, you'll find out the + of one diode is connected to the - of the other one.
@@etrou4 So I could technically run my hookup wire from the two holes of D3, leave D2 blank, and it would work the same?
I buyed a rat pedal today and when i tested it with low gain idk why but theres like a ultra distorted sound on the background of the normal sound, can someone help me?
Man love your videos! Super high quality!
JHS put your face to your name for me. Your stuff is sick and cool vid
I just did this mod on my Wife's rat 2, it sounds awesome. I decided to only use 2 leds for the mod and its a lot easier to just wire the switch off of one of the diodes instead of the bridging. Great video!
Hahaha hahahaha instead of doing the mod on your own Rat you did it on your wifes 😂
using 2 LEDs will make it more similar to a turbo rat right?
You got it! I'm not sure if the configuration in symmetrical or asymmetrical in the stock turbo rat though. Turbo usually means LED clipping diodes in just about any pedal
Ok but there is not reason to solder double cables in the diodes points, just using one diode place (+ / -) would be enough ;)
This is true. Thank you for pointing that out.
@@PoisonNoises That´s ok, Great Channel.
I love you Jordan…I’ve told you before😊
Poison Noises! Love the name lol
Is this close to the JHS mod? I have a packrat, but only use the mod setting. The tone is perfect, but a pedal with top jacks would save space on my pedal board.
Closer to the turbo rat
Thanks! Appreciate the feedback.
If i do this, and change the OP07 to a LM308, can i get a Big Rat (Vintage Rat) mod?
The audible difference between an Op07 and an LM308 is completely unnoticeable.
Sounds like straight in the daw no cab on 🤨
I believe you are correct. It has been too long for me to remember.
What would be the difference if i only used 2 LEDS for the diodes? Great video by the way
It would have less headroom and perceived volume. Clipping harder in a way that would be closer to the original.
Just found your channel. Great info & presentation. Thank you,
In the process of building a clone. This most welcome knowledge!
Im about to install the mod myself, and i was wondering if its possible to add a second LED (not as a clipping source) to indicate which mode it's on, so it only lights up when it's on "mod mode"
pls do more of these, it's really helpful to get into to whole diy mod thing, thank you!
Yes you could. You would need a 3dpt switch, and to have the ground of the LED connect when in the flipped position. Similar to a stomp switch on a true bypass pedal.
If I don’t have a switch, can I individually replace each stock diode with a led in its existing place on the board? Thanks!
That will absolutley work. Just make sure that you match the polarity positions of the original diodes.
@@PoisonNoises Thanks, good vid!
could you do this mod with any other kind of diode in place of the LEDs?
Absolutley. Very commonly, some folks use a pair of 1n34a's.
would this be a good mod to make the rat more bass friendly ?
Definitley to some degree, yes
where can I get one of those fancy, blue multi-socket tools?
Music Nomad makes them. Sweetwater and GC have then.
@@PoisonNoises i've been looking for one of these for YEARS with no luck. thank you!!!
Waited 14 minutes just to hear what sounded pretty much like a fart in the end. Did you just recorded direct without any cab filter, speaker simulator, IR or any other type of speker??
No I just played it through your phone speaker
@PoisonNoises i was using headphones btw.
@@SamVieiraGuitar Awesome! Thanks for the view and interaction!
@PoisonNoises you should use some kind of amp or speaker simulator because it sounds really bad the way you recorded.
@SamVieiraGuitar Thank God you came here to say this! What's a cab filter? Does it filter out negative comments. And what does IR stand for? Is it an abbreviation for "irrelevant reactions".
Do different coloured LEDs produce different sounds?
They actually do to a degree. Different amounts of compression and headroom.
@@PoisonNoises Can you use a LED COD (cluster of diodes) with this mod?
@martinabe9406 I have never done it, but I image it would work. At a certain point the forward voltage drop would be so high that you wouldn't even hear a difference.
Would this mod also work on a lil Rat? Same 3 LEDs on the switch or 2?
Not sure if the Lil rat is surface mount or not. The schematic should be the same though. 2 LEDs can also work, but will sound different.
@@PoisonNoises Sweet, going to give it a shot. Saw one modded with a 3 way switch, rather have the smaller footprint. Thanks for making the video👍🏽.
@@RasCuban33 Try it with an on-off-on switch. That middle position will scream without clippers.
@@PoisonNoises yep, also I’m going to repaint the side/bottom enclosure with color shift galaxy blue spray paint and change out the knobs if those small black ones come off easily. Swap the center red LED to Green.
@@PoisonNoises next to near impossible, it’s top mounted and all of the components are microscopic. You need Jewelers equipment to work on the Lil Rat. Going to get a standard size one now.
Can we so same thing with spst switch???
There are some configurations that can easily be found on Google to swap clipping diodes. However it is usually more convenient to mount them directly to the switch, as is done here.
@@PoisonNoises well my questiom is do i really need dpdt switch or i can do same thing with spst switch?
It is possible yes, but this video will not show you wear to connect in that context.
@@PoisonNoises ill manage that.. thankyou..you are he best
And i like ur videos longer. :)
SPST VERSION: With the LEDs permanently installed in place of the original diodes, a SPST switch can be used to connect the 1n4148 diodes in parallel WHEN THE SWITCH IS ON.
With the 1n4148 diodes switched-in, the signal gets clipped at a lower voltage, so the LEDs (which clip at a higher voltage) have no effect, even though they're still in-circuit.
On the circuit board: Replace one original diode with the LED circuit, replace the other original diode with the 1n4148 pair in series with the SPST switch.
What are the specific diodes and LEDs used in the mod?
The diodes are 1n4148s, the LED are just some common red 5mm.
I like to focus on my playing and practicing rather then fucking with pedals .
This certainly isn't the video for u then
And yet here you are, writing pointless comments on RUclips videos.
This is great…absolute beginner here, but when you change the clipping to the LEDs does it actually make them light up? I’m guessing no but if so it would be really cool to see…
If you put a strong enough signal into it, yes they will. You will notice that one LED will light up brighter than 2 of them in series due to the forward voltage drop.
Loving the mod videos
Very helpful, thank you for the clear filming and explanation!
Totally! Thank for watching