An analog synthesizer is a good opportunity for teaching opamps, but it's a golden opportunity for teaching a particular type: the transconductance opamp. There aren't many use cases for those, and this is the perfect one. And Norton opamps too while you're at it. :)
why dont you make a video about these, I would watch it. im just starting in electronics with a background in computers and programming and struggling with opamps and want to build synths as ive played software vst versions for years.
I'm happy to meet you😁✌️thank you very much. This is my new hobby. I've been collecting IC'S and sooooooo much more in the years of my engineering career. This being, thrown away sensitive electronics, Analytical equipment or military base wholesale electronics. It's been my dream to build MY Synthesizer. You and so many influences will make your mark on mine. And I thank you soooo very much for sharing a large part of yourself with the world 🌎. Much 🧡 love 😁✌️
Fun circuit! You may want to reduce the level of the square wave a bit, though. It will have a higher apparent volume because it has so many more harmonics.
When the wether has stopped being mental over here in the U.K., (temp 33c at 3pm indoors with the fan on), I will build this project. It looks like fun.
Or you could look at something like the 40106 hex Schmitt inverter that I'm using in my build, and you'd get a sawtooth waveform, the basis of a string sound.
Oh, that's no problem! I can tell you, the pitch of the 'last tone' is a little bit to low! (Hi Hi ! ! ) Playing guitare for more than 40 years, I now 'my tones', ... ! Also my 'pitch-tone' for CW, (I prefer 700Hz) is always 'spot on' ! Don't need a "LM-567 - 700Hz LED" to show me, that I am 'trancieve' with my CW-TRX, exactly on 'the frequency' ! (Also with very small filters! So with my TR(u)SDX with less then 200Hz )
This is cool, I'm experimenting and building different kinds of analog function generators because a real one is way too expensive for me right now and I need some way to generate some signals so these little circuits that you're sharing now are really valuable to me at the moment. Could you please share the exact values that you used for the resistors and the dividers to get the same 1V output, you didn't share the values and I really want to make use of your circuits so it would be handy if I can have all the details on the schematics that you show, I can make a screenshot of it that's not a problem but I really need the exact values of the resistors you used. Could you be so kind to show that in your next video, thanks a lot in advance and best regards. Ricardo Penders.
Dislike noise generator, because of ugly asymmetic signal, instead of other generators. Also, isnt a bad idea to give a high capacitive load to general purpose OPAMP, like here in power amp cascade?
the cap is not a load but feed back to the input, quite common. large cap to ground on the output is what is bad. I would like a better noise generator, any ideas
An analog synthesizer is a good opportunity for teaching opamps, but it's a golden opportunity for teaching a particular type: the transconductance opamp. There aren't many use cases for those, and this is the perfect one. And Norton opamps too while you're at it. :)
why dont you make a video about these, I would watch it. im just starting in electronics with a background in computers and programming and struggling with opamps and want to build synths as ive played software vst versions for years.
And your approach to teaching this is great. So many guys try but get hung up in water analogies or current flow rather than just doing it.
I'm happy to meet you😁✌️thank you very much. This is my new hobby. I've been collecting IC'S and sooooooo much more in the years of my engineering career. This being, thrown away sensitive electronics, Analytical equipment or military base wholesale electronics. It's been my dream to build MY Synthesizer. You and so many influences will make your mark on mine. And I thank you soooo very much for sharing a large part of yourself with the world 🌎. Much 🧡 love 😁✌️
IMSAI guy is channeling Wendy Carlos in these videos.
Ladder filter would be cool. Moog. I’m going to build one but it’s an odd circuit.
I will be explaining it in a future video
Fun circuit! You may want to reduce the level of the square wave a bit, though. It will have a higher apparent volume because it has so many more harmonics.
Very instructive. I'm starting to get some intuition about how those op amp circuits work.
I like the way you analyze circuit
When the wether has stopped being mental over here in the U.K., (temp 33c at 3pm indoors with the fan on), I will build this project. It looks like fun.
Thank you. I learn something from you every day!
Beauty! Can't wait the next episode.
Or you could look at something like the 40106 hex Schmitt inverter that I'm using in my build, and you'd get a sawtooth waveform, the basis of a string sound.
Oh, that's no problem!
I can tell you, the pitch of the 'last tone' is a little bit to low! (Hi Hi ! ! )
Playing guitare for more than 40 years, I now 'my tones', ... !
Also my 'pitch-tone' for CW, (I prefer 700Hz) is always 'spot on' ! Don't need a "LM-567 - 700Hz LED" to show me, that I am 'trancieve' with my CW-TRX, exactly on 'the frequency' !
(Also with very small filters! So with my TR(u)SDX with less then 200Hz )
Interesting topic.
Nice presentation.
great presentation ! Excited to see the mixer circuit.
my guess is you're going to use a summing op amp circuit? :)
This is cool, I'm experimenting and building different kinds of analog function generators because a real one is way too expensive for me right now and I need some way to generate some signals so these little circuits that you're sharing now are really valuable to me at the moment.
Could you please share the exact values that you used for the resistors and the dividers to get the same 1V output, you didn't share the values and I really want to make use of your circuits so it would be handy if I can have all the details on the schematics that you show, I can make a screenshot of it that's not a problem but I really need the exact values of the resistors you used.
Could you be so kind to show that in your next video, thanks a lot in advance and best regards.
Ricardo Penders.
This is too cool. What about if you don't have a -rail
you will have to make a virtual ground
Neat! Please, sir, may we have some more?
More to come!
Great stuff !...cheers.
Dislike noise generator, because of ugly asymmetic signal, instead of other generators. Also, isnt a bad idea to give a high capacitive load to general purpose OPAMP, like here in power amp cascade?
the cap is not a load but feed back to the input, quite common. large cap to ground on the output is what is bad. I would like a better noise generator, any ideas