I took a basic electronics class back in highschool in the early 80's so my knowledge is bare minimum. Anyways great video. I play guitar and I always figured a chorus pedal took the sound/notes and added one more that was a tiny bit higher pitched and a note that was a tiny bit lower pitch to get the chorus sound. Like when your tuning a guitar from the string next to it, it sounds kinda like a chorus sound just before the 2 strings come in tune.
Dont forget to check the large section of the build doc (page 5 "circuit analysis") for more in depth information about this circuit, link in the description above
Hi! Question, from what I've gathered here my understanding is that if I already have a vibrato circuit (built into an old electric organ) I could relatively easily modify that to also become a chorus circuit by mixing the dry signal back into the wet one? Of course I'd need to see if the general circuitry will accommodate that, but in essence it should be doable?
@@DiyguitarpedalsAu I'll have to see if the vibrato is also acting as an amplifier, if not I'm thinking some kind of single-stage mixer will do the trick. Although I´ll have to freshen up on my impedances to make sure I won't roast something.
This is exactly the video I reached to see and have been looking for, love chorus and want to make a chorus pedal, so happy it came from one of my favourite RU-vid channels! :)
Absolutely love this. I've been looking for a few months for a good video about how chorus pedals work because they're my favorite non-verb or delay effect. MORREEE
Excellent video! Please show more stuff like this. I always learn something new every time you put a video out. Thank you!
5 лет назад
What a great video! So useful and easy to understand to us without a extended electronics knowledge. I would love to see more stuff like this! Thank you.
I very much enjoyed this video and definitely do want more like it in the future! Schematic diving is so fun and I learned a lot with components I've always seen on them I couldn't figure their purpose out.
Finally! can’t wait to come back from Europe and make this, as well as the tassie devil. Cheers Paul and Erik, we all appreciate the hard work you put in for us!
Great video, I am an electronic engineer but zero knowledge on DSP and/or effects wich I'm very interested in. Would like to see more video on the Hows and work. Thank you so much for sharing.
Thank you for your video, you explain very clearly as engineer about the concept of this effect. There are a lot of videos but only loss time to see. Thank you again. Please continue to make this video is very interesting for the people who make sound engineering.
I know that the 6 voice delay line circuits in old synthesizers used 512 BBDs and they're supposed to be slightly out of time with eachother and the signal is then sent to a mixing amplifier
Very nice! I built the Tonepad clone of the Boss CE-2 some time ago. It just sounds BEAUTIFUL. I went back and tried to analyze the circuit of the CE-2 while watching this video, and now many things make sense, although I still struggle to understand op-amp circuits.
Nice. The Tonepad clone CE-2 was the schematic that got me started into guitar pedal building in the first-place. Though I am a metal-head, I have a guilty pleasure for 80's new-wave. The Boss CE-2 has a lot more nuanced filtering before and after the BBD's, partially for softening the vibrato sound and for making up the subtleties of the BBD's clock.
@@erikvincent5846 I started with a very basic circuit (on purpose. I was 15 yr old at the time and had to learn everything, from PCB making to soldering): The Tonepad clone of the EH LPB1. A single transistor booster. Took me three tries until it worked :P
I got a question that might sound stupid, but it's been bothering me for quite some time. Is it possible to built three of this same circuit only using the fast speed on the vibrato setting at setting the speed of each circuit differently and sending the outputs into a 3 channel mixing circuit to make it sound like an analog chorus circuit in a synthesizer with the 3 delay lines being the chorus circuit?
Curious if you have any insight into WHY these BBD chips are so rare/expensive. I had a DOD Chorus 690 that I absolutely loved until it suddenly turned into a distortion pedal. I had reason to believe it was the SAD1024 chip, and when I went looking for a replacement the prices I found were averaging $100! Seems like someone would have started making clones, but maybe they were hella expensive while still in production and clones wouldn't be any cheaper?
I need some help, man. I recently got a Mosky RC5 multi-effect pedal and every effect works fine, except the chorus. When I turn it on, it sounds with a little bit of distortion
It might be providing a bit of a boost. A lot of Chorus pedals tend to be close to a clipping point and sometimes require the guitarist to roll back their volume knob to make up for it.
It is very well explained, but I'm afraid it doesn't give enough insight to a novice pedal builder. How does a delay device produce the chorus effect? One basic Physics concept is "beat" - when you combine a 440Hz audio signal to a 442Hz, it creates a "wavy" effect of 2Hz (the difference between the two frequencies) which is characteristic of the chorus effect. It is mentioned that for chorus effect a short delay time is required, however, if you combine a short delay signal to the original, all you get is a "bathroom-like reverb". The chorus effect only occurs when you combine a signal slightly off-tune in relation to the original signal - that's where the delay device plays a role. With delay pedals, you can set the 'feedback' knob to maximum (infinite echo repeats) and vary the 'time' knob up or down - if you go up, the pitch of the echoed signal goes up, and vice-versa. The low-frequency oscillator plays the role of someone varying the 'time' knob of your delay pedal back and forth whilst you play. So, basically, a chorus pedal is a (short) delay pedal that combines the original dry signal with a detuned echoed signal. The importance of the short delay time should be evident at this point - if the delay time is set to a discernible interval, one would hear the detuned echoes separate from the original signal and sound quite messy.
