I love making relay oscillators, the sound of the relay clicking is relaxing for me. Great video Paul. Merry Christmas, I hope everything is going great for you and yours.
Great breadboard project for a class I'm teaching (middle and high schoolers). Thank you! They will enjoy this, and it's a good practical example for exploring inductors and capacitors.
Nice, I've seen the idea before and It is awesome. The use of a mechanical part instead of a semiconductor, even though it has It's limitations, is really interesting IMHO.
Nice relaxing and enjoying video again Paul. And I have learned quite a few things so far from you. I even noticed for the first time that that you connected the live wire first and then ground, and that twice in this video. Doesn't matter. I've learned your lesson and that matters, thanks. Merry Christmas to you too, but I'm sure you will come up with another video before that about a nice new multimeter or another smart oscilator with just a mosfet and a few other components. Peace to you Paul.
For the guy you’ve made that beautiful video it might be worth mentioning that due to the mechanical wear of the contacts this thing won’t run forever. Relais have a MTBF for switching cycles.
The click oscillator. The initial buzzing noise (without capacitor ) has a lesser frequency than the 28 ~30 KHz , maybe 1/8 from the divisions on the scope? it has a predominant spike.
Correct, the oscilloscope was also adding in the coil frequency as the power is released, the coil has its own ring. The contact frequency sounded more like 1.5 - 2Khz.
Thanks Paul. It would be simpler for him to just use a PUT. It seems like most people have forgotten about the simple little PUT. My Peak Atlas DCA75 Pro won't even analyze a PUT even though it will analyze just about everything else. I contacted them about it several months ago but they still haven't updated the analyzer yet. Why is there no love anymore for the PUT?
Hi , I was wondering if you can help me ? I bought a 905nm 75w laser diode for $30 and thought it was the same as a 5w laser diode that could run off constant current. Now I see that it needs to be pulsed at 100ns max with 0.1 du at 12.8v 30a. I can get a 100ns PWM using a 555 timer but I need to find a fast switching mosfet that can handle 30a. Do a need a LCR circuit ? Do I need a capacitor bank ? I can’t afford a $2000 driver. Any ideas how to build a cheap pulse laser driver ? Simon from Australia.
@@learnelectronics great description man! 👍 I'm interested in building an ocillator to attach to a piece of steel to make chlandi plate. To do cymatic frequency expairments with the kids. (Because a speaker was too hard on the ears LoL) I was wondering if you have a video that shows how to adjust the speed of the ocillation? Could I just use a Dimmer switch from a fan or harvest some other type of switch?🤔 Thanks.
@@thelastofthelemmings6279 dimmer from a fan will most probably not alter line frequency. These things usually use phase firing thyristors, which will control how long the mains power is on on every cycle but won't change line frequency. What you are looking for is either this circuit but with a variable capacitor, or anything using a 555 timer in astable mode where you use a variable resistor on pin 5 or at some strategic place between pins 4/7/6-2.
We can also make it using npn transistors some diodes and resistors by making a jk flip flop can we? Is that also become an oscillator as in fourth j=1 k=1 the output start toggling i am not sure plz correct me if i am wrong
Maybe I missed it, but what practical application does this have, if any? This isn't a snarky question! Other than a school project is there anything you might build this for professionally? Thanks!
Reminds me of my grade school days in the 60,s . I used to make these up and used them as shockers to the unexpected... A relay , a cap and a nine volt battery would give people quite a jolt.
i have a omron G5G-1A 12VDC relay i tried your method and it is not oscillating :( :( :( can you tell me why ?? and does every relay oscillate applying the same method you did ????
@@learnelectronics Thanks. If you go to your RUclips start page and click on Playlists there are only 37 total videos in all the combined playlist. But obviously you have hundreds of videos. I was recently paged through all of them looking for a baby eight sequencer tutorial. I have never been able to find a good one. A lot of videos showing them already made I really have learned a lot from your videos. You are very detailed. You allow anyone to make your projects. I would love to see one on the baby 8 using the 4017 and a 555 or 40106. No one has ever shown how you tune the potentiometers to musical pitches. I have made many oscillators thanks to you!. And experimented with the 4017( and 4060,40106,reverse avalanche,colpitts,etc.). It would be great to see you tackle this. It seems like a logical step after all your oscillator videos. Also another project I think you could make a great tutorial on ,given your extensive knowledge of the arduino and coding, is an Arduino step sequencer. The few tutorials out there again are not very good. Something like this would be awesome!!! www.instructables.com/id/Arduino-Step-Sequencer/ I think your subscibers would love to be able to make this!! Unfortunately this tutorial is problematic.and no one has been able to duplicate it. Anyways, thanks again for being such a great teacher!!!!!!! It is greatly appreciated!!!!
I love making relay oscillators, the sound of the relay clicking is relaxing for me. Great video Paul. Merry Christmas, I hope everything is going great for you and yours.
Your 'we can make it work with what we've got' attitude is inspiring to all hobbyists...and MacGuyver!
Great breadboard project for a class I'm teaching (middle and high schoolers). Thank you! They will enjoy this, and it's a good practical example for exploring inductors and capacitors.
Nice, I've seen the idea before and It is awesome. The use of a mechanical part instead of a semiconductor, even though it has It's limitations, is really interesting IMHO.
Nice relaxing and enjoying video again Paul. And I have learned quite a few things so far from you. I even noticed for the first time that that you connected the live wire first and then ground, and that twice in this video. Doesn't matter. I've learned your lesson and that matters, thanks. Merry Christmas to you too, but I'm sure you will come up with another video before that about a nice new multimeter or another smart oscilator with just a mosfet and a few other components. Peace to you Paul.
do you have a video on how to do an astable oscilator with transistors?
This simple electronic is very useful. Is this possible to do with a transistor? and how do you make the LED to switch more as a clean cut...
He already made one:
ruclips.net/video/gvbexGxvDUk/видео.html
For the guy you’ve made that beautiful video it might be worth mentioning that due to the mechanical wear of the contacts this thing won’t run forever. Relais have a MTBF for switching cycles.
It's for a school project
What a great video. I love learning things like that. Can’t wait to experiment with it!
Glad you liked it
Cool! My first relay project is a “wig wag” unit for 12v lights. Wish me luck!
Hi. If i need 2 pulses per second (120 beats per minute) what should the cappacitance be?
Is this temperature stable?
The click oscillator. The initial buzzing noise (without capacitor ) has a lesser frequency than the 28 ~30 KHz , maybe 1/8 from the divisions on the scope? it has a predominant spike.
Correct, the oscilloscope was also adding in the coil frequency as the power is released, the coil has its own ring. The contact frequency sounded more like 1.5 - 2Khz.
Thanks for this, merry christmas to you as well
Thanks Paul. It would be simpler for him to just use a PUT. It seems like most people have forgotten about the simple little PUT. My Peak Atlas DCA75 Pro won't even analyze a PUT even though it will analyze just about everything else. I contacted them about it several months ago but they still haven't updated the analyzer yet. Why is there no love anymore for the PUT?
Very nice and simple tutorial! Keep up the good work :D
Hi , I was wondering if you can help me ?
I bought a 905nm 75w laser diode for $30 and thought it was the same as a 5w laser diode that could run off constant current.
Now I see that it needs to be pulsed at 100ns max with 0.1 du at 12.8v 30a.
I can get a 100ns PWM using a 555 timer but I need to find a fast switching mosfet that can handle 30a.
Do a need a LCR circuit ? Do I need a capacitor bank ?
I can’t afford a $2000 driver.
Any ideas how to build a cheap pulse laser driver ?
Simon from Australia.
DIY turn signal flasher. 😀 Merry Christmas Paul, thanks for the video!
Pretty much
@@learnelectronics great description man! 👍
I'm interested in building an ocillator to attach to a piece of steel to make chlandi plate. To do cymatic frequency expairments with the kids. (Because a speaker was too hard on the ears LoL)
I was wondering if you have a video that shows how to adjust the speed of the ocillation? Could I just use a
Dimmer switch from a fan or harvest some other type of switch?🤔
Thanks.
@@thelastofthelemmings6279 dimmer from a fan will most probably not alter line frequency. These things usually use phase firing thyristors, which will control how long the mains power is on on every cycle but won't change line frequency.
What you are looking for is either this circuit but with a variable capacitor, or anything using a 555 timer in astable mode where you use a variable resistor on pin 5 or at some strategic place between pins 4/7/6-2.
@@takix2007 thank you 👍
@7:02 : "Do as I say, and not as I do" moment :)
It is awesome that you watch enough of his videos and pay enough attention to catch that. That means his lessons are helping out :D
We can also make it using npn transistors some diodes and resistors by making a jk flip flop can we? Is that also become an oscillator as in fourth j=1 k=1 the output start toggling i am not sure plz correct me if i am wrong
That's a relaxation ocillator
Maybe I missed it, but what practical application does this have, if any? This isn't a snarky question! Other than a school project is there anything you might build this for professionally? Thanks!
Reminds me of my grade school days in the 60,s . I used to make these up and used them as shockers to the unexpected... A relay , a cap and a nine volt battery would give people quite a jolt.
Because of the relay coil self induction?
i have a omron G5G-1A 12VDC relay i tried your method and it is not oscillating :( :( :( can you tell me why ?? and does every relay oscillate applying the same method you did ????
Enjoyed this video and that's an innovative idea
COULD YOU SHOW SOME VACUUM TUBE CIRCUITS,GUITARIST LOVE VACUUM TUBE AMPLIFIERS.
We likes the sound of this one, we does, and we gets to play with the ‘scope too, my precious! Thanks Prof Paul... 👍🏻 🧐 🐍
Ha! Gotcha! Paul you ALWAYS say hook up grounds FIRST lol
You're right. I was naughty
Old style portable tube radios used that type of oscillator to create high voltage to power the tubes.
if you put the LED on the N.O. contact and there wont be a slope. The LED with flash like a strobe.
Isn't this basically a capacitor tester? Reminded me of the super old ones with the big "eyes" that show the charge/discharge of capacitors? =p
worth the watching thank you
Schematic is slightly incorrect. The capacitor is between the coil pins of the relay.
Love your vids, sorry your patreon is dwindling. You still have my support on patreon, it's not much, but you have more than earned it imho.
There is no play list for oscillators anymore. In fact most of your videos do not have a playlist. Did not know if you were aware of this or not :)
ruclips.net/p/PLGhvWnPsCr5_buJHaCe7op1d890rBOo3v
@@learnelectronics Thanks. If you go to your RUclips start page and click on Playlists there are only 37 total videos in all the combined playlist. But obviously you have hundreds of videos. I was recently paged through all of them looking for a baby eight sequencer tutorial. I have never been able to find a good one. A lot of videos showing them already made
I really have learned a lot from your videos. You are very detailed. You allow anyone to make your projects. I would love to see one on the baby 8 using the 4017 and a 555 or 40106. No one has ever shown how you tune the potentiometers to musical pitches. I have made many oscillators thanks to you!. And experimented with the 4017( and 4060,40106,reverse avalanche,colpitts,etc.). It would be great to see you tackle this. It seems like a logical step after all your oscillator videos. Also another project I think you could make a great tutorial on ,given your extensive knowledge of the arduino and coding, is an Arduino step sequencer. The few tutorials out there again are not very good.
Something like this would be awesome!!! www.instructables.com/id/Arduino-Step-Sequencer/ I think your subscibers would love to be able to make this!! Unfortunately this tutorial is problematic.and no one has been able to duplicate it. Anyways, thanks again for being such a great teacher!!!!!!! It is greatly appreciated!!!!
TY
Just add a bleeder resistor between the positive & negative poles of the capacitor, try a 10k ohm and go from there!
Why
@@naturalmilkhoneyandzenretr9508 To get the LED to shut off cleanly (I think)
Old school blinker
See my wireless energy Video 🤭
It works with DC and an relay for"fake ac" 😁