Відео

Love this delay, been using it for like 20 years haha tried others but this is my old reliable, great breakdown, thank you!

Dude, your envelope follower is wrong, you circled the threshold (just a volume control, or a "voltage divider") but you also circled the high gain clipper (IC1), the envelope follower is what's after that clipper. What does the gating is rather Q3 alone, it's the variable resistor. Then later you say that IC2 is connected to Vref via C9, but C9 get rids of DC, so IC2 isn't connected to Vref at all, but rather VB (the two 1meg resistors you removed). R18 at the end is just "common on some effects" it's to prevent the IC to oscillate when unplugging the guitar cable. R7 (you mean R8) and C3 is not a low pass filter but high pass, however there is some kind of low pass filtering going on, but it's because of the slew rate of the op amp that cannot provide the gain on the whole audio spectrum, if the slew rate were infinite you wouldn't have that low pass filtering going on. A part from these mistakes, the rest of the explanations are correct.

Excellent Video, thank you. Is there any chance you could make a similar video for the Boss BF-3. For years, I have never understood what its "Ultra Mode" is doing, and I would dearly love to know. (I also have a Boss BF2).

@thescientificguitarist4228 I'm not getting a smooth gating action on my '79 MXR MX-106 Noise Gate. It seems to crackle and oscillate as it's gating the signal. Can a bad Q2 cause the gate to do this as it's clamping down on the signal? I've literally replaced everything else on the board except the BJTs and it works exactly as crappy as when I got it. If I do replace the BJTs I have 2N3904 and BC337 to choose from. I'm leaning toward the BC337 and I belive they are pin compatible. Thanks for any help.

Большое спасибо! Я сейчас проектирую дисторшн педаль и задумался о внедрении активного фильтра. Ваше видео пришлось очень кстати!

I don't understand how you flip flopped the terminals..what do you mean..the ics only go in one way...

Yup nailed it: decades of proprietary hoodoo from EMG and the like debunked. Also, the sound shaping actually really works! I would suggest not having the magnetic flux too high to avoid damping the actual guitar strings, or getting wolf tones.

That was very helpful. Thank you. Great video.

I like these for my 98 parker fly deluxe. Height might just be doable or a slightly smaller bobbin

Fantastic. Did you pot the coils? Is it unnecessary ?

Will you be republishing your driver circuit? I think you took it down due to some issue you found with it?

this is awesome! i love your channel man. greetings from buenos aires

Any thoughts on a kit I can purchase. Not so sure how to source these parts. Thank you for the work this is exciting. I use high gain equipment and have wanted a low output pickup for a long time. Metal and doom primarily. You have my attention.

yay LTspice!

Thank you this very informative! I have a CE-2 that only outputs the dry signal. I don’t get a chorus effect when it’s engaged. Do you think it could be something with the summing section or maybe the LFO? Everything looks fine when I opened up as far as cables and connections. Any troubleshooting advice would be greatly appreciated! Thanks

Can you post a demo of the final product? I've been working on my own sustain/feedback driver, from a totally different direction - I would love to share it with you, because I'm pretty much stuck now, trying to create a small solution using an exciter speaker (instead of a pickup).

Not working. Only dry signal is working. Should pin3 and 4 not be grounded?? Checked schematics 10 times, no errors. Swapped pt2399, same results. Full 9v battery, check so what else could b wrong?

more or less like a "magnetic piezo" pickup?

I really appreciate all the info. Thank you for sharing your insight. I need to look and see if you have a tutorial on oscillation, Thanks again!

Good project! Unfortunately I was missing a demo of the sound shaping circuit. Could this be added, please?

where is the sound dude? we dont hear enything

where do I buy the kit?

How the value of the power supply voltage divider resistors (R7, R8) is calculated? Some effects use 10k, others 100k.

8:00 it's a good idea to keep the chuck key with your hand when using a lathe. It'll smash you real good if you forget about it and turn it on.

can we add a Tap Tempo to echoplexus?

Dude you are totally amazing. This is an amazing walkthrough of the PT2399. Im a total beginner and just started learning about the PT2399. I struggled for a few hours to get a circuit working on a bread board till i found this. This is by far the most in depth explanation that i can find and actually completely understand. I built this on a bread board in like 10 mins and it works flawlessly like you describe. But i want some high frequency in mine. You mention that R10 and C12 form a RC filter and also R16 and C15 form another RC filter. you also said C20 was doing some high frequency filtering. I tried removing R10, C12 ,R16 and C15 and the wet signal sounded about the same. being a total beginner and not knowing what I'm doing i also removed the C20. Everything i remove seems to have very little affect on the wet signal, its just dark. My dry signal is very crispy but the repeats are just not bright enough for my taste. You have any quick insight on getting more treble out of this? Any help is greatly appreciated.

nice tuturials

So does anyone know how you connect this device to a Delay Pedal? How do you connect the guitar?

I’m not an electrical engineer or anything close to that, but I love modding guitars, and I want to try this out. But I don’t really understand how to make it change voicings on the fly. I think a toggle system would be really nice to easily change voicings and get the same result every time (as opposed to a less accurate, albeit more versatile, potentiometer).

I've been trying to Program the ATTiny85 chip with my Arduino Nano following your instructions, but I can't get it to compile and upload to the chip. I downloaded your ATTiny85.ino file from your Tap Temp site on GitHub, but I'm not able to get it to upload to the chip. Can you help me on this?

IS there an example of you hooking up the driver tot the electronics, cause I'm a bit lost in that area?

Do you have a more high res picture of the full circuit that's on the webpage 'Reverse Engineering a Sustainiac Sustainer'? I didn't find it in the github. I don't find the transformer in the schematic. Where should this be located and connected to the driver. Hope you can help me out.

It looks like my previous attempt to post a comment got lost. Anyway, I'm building a basic delay pedal kit with 1 PT2399 chip, and I'd like to add Tap Tempo that has presets of quarter, eighth and dotted eight note capability. Looks like this would do it. I've gone to your other channel and read about construction of this project, and then went over to your GitHub site and downloaded some of the files. I'm interested in doing the through the hole project. So do I download that Gerber file and then order the board to be built by a PCB company? Obviously I've never done this before. Will I also have to acquire an Arduino and program any of the IC"s on this board? As to the other files for parts and values, which are the files for the through the hole board, and which is the current version? Can your schematic be downloaded, since it's hard to read the information on the parts and connections? And, am I correct that this cannot be used with an analogue delay pedal using the Bucket Brigade chips? Sorry for all the questions.

Great information; great video; bravo! I have seen circuits designed with this chip for echo and also delay - on the same data sheet, IIRC. I found that fact to be confusing. I could not tell if just one chip could be made to do both functions (at the same time,) or if two chips and separate circuits would be needed? That holds true, for the chorus function, as well... Are separate 2399s needed for each function, or can one chip do all three effects? Thanks!

Nice video! Have watched nearly all of yours, but never really come across a "dripping" (Dick Dale, surf rock) spring reverb on the channel. Is it even possible to build such a reverb just on pt2399's?

Thanks for the project files on this, how do you test the pcb that everything is correctly working? with oscilloscope and such. maybe you can make a detailed video on this pedal

BYU?

Well, I have to breadboard this now. Thanks for the inspiring rundown. 🤙

For one thing, most "guitar people" (especially UA-camrs) are fantastical, fantasy believing, room temperature IQ individuals. So, what you're talking about is way over their heads. Your sound results are no different than what you can get out of volume/tone adjustments and adjustments of an amplifier. Just like multi-scale or more strings. The question is, where are all the great hit songs we can all enjoy from all these "revelations". Everyone forgets that guitars are more composing music! People blame not having the magical guitars that the "Jimmies" had as to why they can't write songs. WTF!

Hey, I'm wondering if you could explain what Q7 and Q8 do? I'm not sure what their purpose is and how they're connected. Are their gates not connected to anything?

Great video. Why is R1 and R2 necessary if we already have a voltage divider (VR)?

newbie here. I'm trying to build a really simple on/off high pass filter for my bass guitar so i can get some clean chords from it, since it's a 4 string tuned down to low B. do you guys have any idea on what i would need to build it using a microcontroller? this has been really helpful

IS THIS KIT AVAILABLE???

Heyo! Just found this. Subbed. Thanks for the video

Do this with hot rails!

I've needed this video, great explanation! Thank you very much!

I'm a novice who isn't beyond pedal pcb boards. So no schematics for me yet. That said, I want to create a distorted chorus in one circuit. Can I mod this circuit to add distortion. "Saturate the bbd" is beyond me at this moment, so would you mind explaining how I would do that? Is it something worth my time or would it just create useless noise? Thanks in advance. Appreciate your channel!

Can a hard clipping overdrive clean up with guitar roll volume?

Thank you for explanation! It also helped a lot that you connected JFET and C8 correctly, unlike what you find on internet ;) Any ideas what C9 and R11 are for?

What are actually the advantages of two separate coils instead of one?