Carbon Oscillator
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- Опубликовано: 5 фев 2025
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Notice the coil of wire on the pencil lead. When he applied current to it. The coil became a magnet and it pulled the lead away from the contact which shut the current off than the coil lost it magnetic field but acting like a spring push the lead back against the contact reenergize the coil magnetic field to pull it away from the contact. Remember breaking and connecting the lead makes pulsing D.C. which light the neon bulb. Hope this explains it.
Wow . I thought it was a spark gap that generated oscillations
Great experiment!!!
I tried passing 220Ac across pencil lead it was great explosion
It is good that you mentioned that the so called pencil lead is made of Carbon (Graphite).
The beauty of this oscillator... it requires no external power to operate it, nice thanks for showing! True input to output efficiency measurement would be an interesting project.
I'd be worried that it was going to start on fire, but that's a pretty consistent diy reverse biased diode.
would be cool to look at the oscillator waveform on a scope
Yes! But it could be just some noise..
Probably just look like some irregular square wave with some high voltage inductive spikes at every cutoff cycle.
My oscilloscope got jacked😢
@@tomfly3155 F
I think all thats happening is the graphite has a very small point of contact with the wire, which heats up, burns out and then looses contact. There is a bit of tension on the rod pushing it ever so slightly toward the wire and they touch, restarting the process until there is not enough tension to make contact after burn out.
you should try connecting capacitors between the carbon rod and the transformer and the primary of the transformer and see what configuration will change the frequency and what configuration will make it stop working
I used a 120-6V transformer in reverse to power the HV section of a homemade Geiger counter. Rigged up a 555 and a MOSFET to convert the DC in to AC.
It would be nice with some explanation on how it works.
Thorben Nielsen
A spark gap oscillator it is. I asked the same and between five people with totally wrong answers came the only one right answer from BR Grunandanan. A bit above here
Than you. This video is very nice explainatory, just as your others. Really helpful for enthusiasts.
beautiful ozillator , nice past , we can build with this also a mini tesla coil , also with the relais ozilator or reedswitch ozilator as a primary main sensor for Mosfets , ,this sensors start from zero -point as a C driver for mosfets , all transistor drivers need for ozilation a little current and become faster hot ( A or B tact ) , but to use the batteries just from zeropoint in C tact , all devices becomes best quality in using the fully rangement of capacity of the batterie , the name of these zero point sensors are mechatronics sensors ,,thats sometimes better than much parts and soldering points , because the shortes way of solution have longlife more that 50 soldering points , your presentations are wonderful , thanks much
Its clever man.....very clever thanx for this video. It even gives us a part of wireless telepgone history
Nice! This only works for a short time, but very usefull for making a doomsday emergency AM radio transmitter, or a single use radio switch for traps, bombs or whatever. And for people who ask how it works... it is just a tiny spark gap. It works just like a Tesla tranformer
So much this. THIS is the kind of stuff I LOVE seeing!!! 😍😍
Wow ..thaks for giving knowdledge
What explaining?
How a transformer works?
I expect at least ány explaination for the oscillation from a piece of carbon??
Thank you!
I noticed this when messing with a halogen lamp driver; I saw it pulsing with clicks and flashes occasionally and was extremely confused
Will you make an AM or FM radio transmitter using this carbon oscillator?
I will be very thankful to you.
simple - great. thanks for sharing.
I had a thought, If we have a resistor in series with a transformer feeding it with dc when the current goes high the resistor gets hot and changes resistance wich then causes less current to flow wich then cools down the resistor wich conducts more and heats back up aso...
I think this is kinda like i thought but maybe with arcs due to the flyback voltage ?
Interesting but I am not sure if the resistor in series will oscillate, I would bet that after a transient oscillation equilibrium will be reached. But only experiment has the final word
Thats what o was thinking maybe a cap in parallel with coil cloud help ?
Or maybe a very temperature dependant resistor like a light bulb would work yet still equilibrium would be reached.
But if we have a load on the coil with more turns of a transformer with a 10:1 turns ratio that turns on at say 50V like the neon then it would pull some energy meaning it would pull more current heating the "lamp" (resistor) up cusing less current to flow cooling the "lamp" (resistor) down aso.
Kinda like a zener diode with a resistor in series,only here we are using a resistor and transformer.
just a spark gap switch. cool
It look like a carbon is burning cause the rod bounding maybe it become CO2? after burn ? and make a disconnection and the copper spring push it back and conduct again. This is very nice ideal , such as simple way to make inverter , the only thing is how long the carbon can last? after burning.
Hey ludic, would this work for driving a high voltage car ignition coil?
Spark gap breakdown = plasma = negative resistance and negative resistance (absolute not relative) = overunity power gain! .....If you don't mind the broad spectrum splatter.
Great and nice explanation!!
Very educational!
How does the sparking part work?
The higer the frequency the shorter the duration of each pulse.
Saudações LS Ludic Science. Saudações a todos. Acho que entendi o principio de funcionamento (apesar de não falar inglês). A mente humana é incrível. Parabéns. Tudo de bom.
I love it, didn't know about this! Have you made a glowing carbon lamp from a pencil lead? Run lots of current through a lead and it will glow white. Too much and it explodes.
But how?
Why oscillates this?
You dont give even the least explaination! Okay they used this earlier. But what is the reason it works??
It sure cóuld be interesting enough wíth explaining.
Or do we have to google it ourselfs out áfter watching your video?
Rob Son it looks like it sparks and slowly eats the carbon rod.
it's not "oscillating", it's just a bad connection interrupting the current
My guess is that the spark heats the air causing expansion of the air. Like thunder. The pencil lead is on a delicate spring (the connecting wire) and is pushed away by the pressure. This breaks the circuit. A moment later the spring pushes them back together. Repeat. The fact that the pencil lead is carbon may help. Some of the carbon combusts to form carbon monoxide or carbon dioxide which improves the sudden pressure increase.
Ray Kent that's exactly what I was thinking, I just didn't want to go that in depth to explain it.
Rob Son
Simple explanation: It's a spark-gap oscillator, with the transformer coil being the inductance.
OTOH there are big books about spark-gap oscillators and transmitters, and they are in use even today.
So much fun
Notice, that the neon lamp was blinking with just with one electrode when connecting, and with just with the other one when disconnecting the power supply. Try to figure out why...
Pulsed dc man no true ac waveform
Awesome! I never heard about this type of oscillator before. Could you hook up the output of it to a oscilloscope so we can see how the waveform looks, and compare its properties to more modern oscillators?
A D
It is a so called Spark Gap oscillator with the trafo as induction.
Vary cool. Will it reduce ware if you put an aluminum contact on the tip?
Can you make a vacuum tube version of this one next time?
sir a genius is what u are!!!!! kudos!
Extremely cool..
Interesting
I love your channel but did you seriously just end the video without ANY explanation of the significance of the lead, how it leads to oscillation, etc.? Yes I know a few people have explained the concept in the comments, but that's beside the point.
El Cabrón oscillator
Can you make a steam turbine?
Thanks
Awesome!
Nice video
Super video bro vary nice video
Very good explained!
Did i miss something? I miss any explaination!
Explaining how a transformer works okay, but i miss even the least explaination for the fact that a carbonrod gives oscillations!?!
That's eigt, I also missed the description at this end a little bit but the description at the beginning was very good to understand.
Congratulations for being the first!
Oschi
It is a so called sparkgap oscillator. Thanx to br burundanan this became clear, he was totally right.
Don't do this people. This produces horrible inductive voltage transients that backfeed to your power supply and can destroy the protection components.
Simple fix. Use something more robust like a battery.
I think this is how piezo oscillators work . Right ?
No
Great video, I subscribed! and liked.
Thanks!
Very good work as always very clear explained.
Did i miss something? I sure miss any explaination!
juan perez
What explaining?
How a transformer works?
I expect at least ány explaination for the oscillation from a piece of carbon??