Dude... it is "zee non" not "exxon". Get a precision resistor, Dale makes them. Get lowest value possible along with say 20 watts. Calculate the current with the voltage drop across the resistor. Of course things will get hot. You have damn-near a dead short circuit for a primary. You can always parallel transistors so they current share and stay a bit cooler. The total heat will be the same just each transistor will be cooler.
I'm in the process of making my own flyback as the one I've been using as a cap charger has too much impedance. I was hoping you could tell me what the cycling rate of the voltage it puts out. Is it several khz or much less?
The reason I'm wondering is because I've been looking into transformer design and the lower the input power cycles, the more saturated the core gets which results in a useless electromagnet instead of a transformer. To reduce the saturation, you need more coils.
@Britishdude1 you mean the frequency my transformer is running at? i have no clue, but i assume it's near resonance since this is a self-oscillating driver, but typically these transformer cores run at 20-60khz
It should run close to flyback frequency because the secondary HV coil has also intrinsic capacity and it its designed for this frequency. It is a resonance circuit. At this frequency resonance transformation should occur and rise the voltage over the normal n1:n2 ratio.
@codex653 no, it is driven with a duty cycle, the best i can explain this is the time power is flowing compaired to the time its not. a low duty cycle is like 10% ON, and 90% OFF, the higher duty cycle is like the other way around. the waveforms should look like this
I have a problem. I think that i made the circuit for my flyback transformer right but theres somethin wrong-It gives out only 19 volts when i use a 9 volt battery! there are sparks but they are only about half a milimeter long. Why it doesn't make normal sparks and big volts?
@RRdigy 19v on the secondary side?? you shouldn't be getting any arcing with 19v...maybe some sparks if you have high enough current, but that's unlikely with a 9v battery. First off, you really need to be using a 12v lead acid battery or some other 12v high current supply. This circuit takes more juice during operation than a 9v battery can supply, which may be what the problem is. Try running your circuit again, but connect the power with a 12v lead acid. Message me after you do that
@codex653 Well the arc is really small (almost not noticable). I'll try to get get some other high current battery and then look if it works and doesn't kill my resistor like it did when i putted two 9 volt batteries together.
@RRdigy ok so you ran it off of 18v and you killed your resistor?!...what's the wattage rating?!...you seriously need to use a 5-10 watt resistor for both of the ones called for in the circuit
@codex653 well the wattage rating could be really small but i dont really know how much it is 'cause I used resistors that my brother collected in a box. I didn't have any access on higher wattage resistors so i had to use them.
@codex653 Well the wattage rating could be really small but i dont really know how much it is because I used resistors that my brother collected in a box. I didn't have any access on higher wattage resistors so I had to use them. I'll buy some better ones sometime soon, though.
@joe70725 there is no schematic....there is, however, math! :) do a search on google and type in "flyback transformer operation principles"...that should get you some good stuff. The thing is with a flyback, there is no definite schematic. You have to design it.
@machinefan123 yah, i cracked the core off the flyback...then once i wound on the primary and secondary, i super glued the pieces back together...i explained how i wound the coils in the vid
Second, and I may be wrong (its been 10+ years since I read about this) , But I think pushing high frequency electricity through a Xenon tube can emit X-ray radiation if the frequency is high enough. Be careful!
@IHMAWTD u need to pas a 'limit' to get xrays. electrons need to be quite fast when they hit a target to emit X-rays, from what i know , in high vachum you need like 15kv+ to emit considerable X-rays (not just a few particles per minute or something) in a xenon tube, lightbulb other thing with medium or low vacum you need a litle higher voltage like between 30 and 100kv. frequency has no influence, just intensity and voltage.
@IHMAWTD If you don't know what you're talking about, shut up please. Seriously, all these people giving their advice are getting on my nerves. X-ray this, microwave radiation that, blablabla, just because you have heard *something* *somewhere* at some time. More people die in car accidents than people doing our hobby. In fact, I have never heard of anyone dying while making experiments like this.
For the record, I can assure you just by watching it, that no x-rays were generated in this video.
@hardstyle905 you're a fucking idiot. I will say what I want, where and when I want. Just because you're too much of a inward homo to care about a stranger's well being, does not mean the rest of us are. If you want to continue this conversation, come out here to Bakersfield and I'll stuff your wimpy bitch ass in my microwave and teach you all about the dangers of high frequency/high voltage.
you may want to ditch the dead beat transistor driver, and push that thing with a 555/mosfet driver. you can push ALOT more wattage into it at alot higher voltages.
@zker666 haha yah i know....i've actually ditched this project a long time ago now...i've switched over to amplifiers and stuff..infact i'm actually using the 555 in a switchmode power supply i'm building:)
Yours is a good explanation of how your system is built and how it works. Wish more presentations were as good.
As for the xenon bulb, (it's pronounced "zee-non") it appears to be plasma, little lightning, forming. You're going well past the valence shell ionization phase.
Also, it takes approximately 20kV to arc across one-quarter inch of dry air, from the looks of your open spark, your system easily exceeds that value.
Good luck with getting an ohmmeter having higher values.
@plavins1 sorry this took so long, nope! it doesn't matter! although you may want to not use wirewound resistors...i'm not sure what the inductance would do to the circuit, if anything at all.
@usernameABCDXYZ meaning the resistors looking like big ceramic ones....i said before that they have to have the same value as the ones given in the link in the description
@usernameABCDXYZ sort of...if you put too much power through it (which is controlled by the resistors) you can burn out the secondary of the flyback transformer...they have very very very small wire that can't handle much current.
@usernameABCDXYZ well the circuit calls for x1 240 ohm resistor and 1x 27 ohm resistor...these are meant to somewhat bias the transistor...speaking of the transistor, you are using a 2n3055 right?? i've found very few transistors besides this one that works.
@usernameABCDXYZ the circuit doesn't have to have the specific resistors that i am using (the big ceramic ones). i just had those in my junk box and decided to use them...any resistor that has the same value as the ones given in the link in the description will work
@MaryStewart well technically no, in order to get more power you would either have to increase the voltage supply or increase the current draw through the circuit. all adding more windings will do is increase the output voltage. but because this is a transformer, the actual power stays the same. so X watts in= X watts out roughly...you can just vary the proportions between voltage and current. so because this is a step up transformer, the voltage rises proportional to the current drop.
@xXxXpatboiXxXx sorry this has taken me so long to reply, but no, i'm not using a 555 timer. back when i built this i didn't really want to be using any IC's just cause i wanted something quick and fast to build...i'm using the circuit that is given in the link in the description.
well first off i would check the scooterbattery with a voltmeter to make sure it is actually charged. this thing won't work too well if the powersupply doesn't work. lol
a feedback winding in this circuit is a coil of wire, just like the primary, that you wind ontop of the primary and has only about 3-10 turns or so. oh and wind in the same direction
on this one it was from a CRT Monitor flyback , but it doesn't really matter whether it is a tv flyback or Crt flyback...this is a self resonating circuit so the iron core's make up or what it is from doesn't matter too much. it still does but it's not huge
yeah i have...not this specific flyback tho, i have long since destroyed it and built a new one and designed it better. with the new one, i don't use it much cause the zvs driver put's out too much current and melts my electrodes when i arc them :P but hey, atleast i know i got some power behind it!
resistor? you mean my big ceramic wirewound resistor that i have in there? i don't buy my parts anyways, all the stuff i have in there i scavanged for....ha i haven't bought anything to date yet
Your welcome. I was trying to ask how far apart the windings were on the teflon taped coil. Also another request, Could you possibly make another video on your new setup? With the diodes on it? Thank you anyway for this video.
yeah sure! i can try tho, i don't think i have this exact flyback anymore but i'm pretty sure i have another one i made around here somewhere. as to answer your question, the turns have no distance inbetween them. they are closely wrapped to fit as many turns as possible on a layer (with a quarter inch gap left on the end to prevent arc over) then the layer is covered with packaging tape and a layer of teflon tape. i have found tho that several layers of packaging tape works better than teflon.
What kind of transistor did you use? because that one looked different than the one in the diagram. Also, I don't know too much about electric circuits, but would a 220 ohm resistor have the same effect, or does the watts listed with it change it's effect?
in this video i used a 2n3055 power transistor that was mounted onto a heat sink...with the configuration i have now it broke pretty easily. a suggestion to make to the circuit if you build it is to have a diode going inbetween the collector and emitter of the transistor with the little silver line on the diode pointing towards the collector. this protects from highvoltage feedback spikes that would normally destroy the transistor. the diode really really prolongs the life of the transistor.
i used a 800v 1A diode for that by the way. as for the resistors, a 220 ohm one is perfectly fine. it's the same one i used here also. and the second smaller resistor i used is a 18 ohm. yeah the wattage does change with a resistor change because either more current is getting through or less current is depending on the value of it. you can supe this circuit up a bit tho if you want....that one diode upgrade really helps.
on my new circuit i have a 2n5885 that is driving it, (it has a higher current and voltage rating but you would be just fine with the 2n3055 ), i use two diodes going from the emitter to collector instead of one. my larger value resistor is now 240 ohms and the smaller is 22 i think. now one thing you will have to do if you make your own flyback and even if you use a flyback from say a tv or something is fiddle around a bit with the feedback windings.
too many or too little turns really reduces performance...the primary is not as picky, 5-20 turns usually works...keep in mind though that with lower primary turns equals higher output voltage but raises the current which equals a shorter flyback lifetime....that's why i like to make my own flybacks from the original iron on them when they break... you can use wire that can handle the current...if you are making a flyback and want some help with it message me and i'll be happy to respond! :)
that weird grayish thing you are talking about is a heat sink. definitely keep that one you found. it is very very useful at times! this circuit gets VERY hot and that heatsink is used to take away the heat from the transistor so it doesn't blow. i unfortunately don't have one big enough for this circuit so i have to buy some fans to mount on it. those help alot if you have those too.
thanks. i found that out earlier after spending a lot of time looking around. got a ton of those things now. 'bout four of those kind and one for a proccesor.
Xenon if pronounced z-non
daytonharmon94 3 weeks ago
weak nice driver and such good job making it but that ark is so small look at the super flyback driver and youll see sumthing awsome
56madmen 1 month ago
Comment removed
56madmen 1 month ago
Kool !
HorizonDelta 1 month ago
nice upload
ken25taylor 2 months ago in playlist More videos from codex653
These are good for capacitor chargers if you add a diode. However i prefer a 555 timer and mosfet for driving them though.
rocketman221projects 2 months ago
i love it. good job man.May i learn output voltage,primary and secondary coil's AWG? Thanks.
mhytbuster52 5 months ago
Will the wire kill you if you touch it because its only 6 d batteries!!!
mountainmusic100 5 months ago
Comment removed
omgitschrislol 5 months ago
This has been flagged as spam show
@mountainmusic100 do you know what a flyback transformer even is?
omgitschrislol 5 months ago
Dude... it is "zee non" not "exxon". Get a precision resistor, Dale makes them. Get lowest value possible along with say 20 watts. Calculate the current with the voltage drop across the resistor. Of course things will get hot. You have damn-near a dead short circuit for a primary. You can always parallel transistors so they current share and stay a bit cooler. The total heat will be the same just each transistor will be cooler.
Landotter1 5 months ago
I recommend making a ZVS flyback driver, it's so much more effective, no heating and more power
TheError404 6 months ago
how's the core looks like? is it a closed square core, or double C on top of one another ( so there are air gaps in each windings) ?
hulago1234 8 months ago
@hulago1234 I guess you could call it a double C...there is a small air gap on one of the C's
codex653 8 months ago
put it in macro mode ...
swerrock 9 months ago
that xenon tube is prounced zee-non
thewii552 10 months ago
What thickness wire did you use for the secondary?
Berghiker 10 months ago
it`s a tesla coil try puting a small clear incandesent light bulb on the spark and it will turn into a plasma globe.
cyrusrom 1 year ago
I'm in the process of making my own flyback as the one I've been using as a cap charger has too much impedance. I was hoping you could tell me what the cycling rate of the voltage it puts out. Is it several khz or much less?
The reason I'm wondering is because I've been looking into transformer design and the lower the input power cycles, the more saturated the core gets which results in a useless electromagnet instead of a transformer. To reduce the saturation, you need more coils.
Britishdude1 1 year ago
@Britishdude1 you mean the frequency my transformer is running at? i have no clue, but i assume it's near resonance since this is a self-oscillating driver, but typically these transformer cores run at 20-60khz
codex653 1 year ago
@codex653
It should run close to flyback frequency because the secondary HV coil has also intrinsic capacity and it its designed for this frequency. It is a resonance circuit. At this frequency resonance transformation should occur and rise the voltage over the normal n1:n2 ratio.
hpeterh 1 year ago
@codex653 no, it is driven with a duty cycle, the best i can explain this is the time power is flowing compaired to the time its not. a low duty cycle is like 10% ON, and 90% OFF, the higher duty cycle is like the other way around. the waveforms should look like this
powermaks 7 months ago
@codex653 you will need to google duty cycle, i get an error when i make waveforms out of text __
powermaks 7 months ago
I have a problem. I think that i made the circuit for my flyback transformer right but theres somethin wrong-It gives out only 19 volts when i use a 9 volt battery! there are sparks but they are only about half a milimeter long. Why it doesn't make normal sparks and big volts?
RRdigy 1 year ago
@RRdigy 19v on the secondary side?? you shouldn't be getting any arcing with 19v...maybe some sparks if you have high enough current, but that's unlikely with a 9v battery. First off, you really need to be using a 12v lead acid battery or some other 12v high current supply. This circuit takes more juice during operation than a 9v battery can supply, which may be what the problem is. Try running your circuit again, but connect the power with a 12v lead acid. Message me after you do that
codex653 1 year ago
@codex653 Well the arc is really small (almost not noticable). I'll try to get get some other high current battery and then look if it works and doesn't kill my resistor like it did when i putted two 9 volt batteries together.
RRdigy 1 year ago
@RRdigy ok so you ran it off of 18v and you killed your resistor?!...what's the wattage rating?!...you seriously need to use a 5-10 watt resistor for both of the ones called for in the circuit
codex653 1 year ago
@codex653 well the wattage rating could be really small but i dont really know how much it is 'cause I used resistors that my brother collected in a box. I didn't have any access on higher wattage resistors so i had to use them.
RRdigy 1 year ago
@RRdigy ok, well you are gonna have to find some higher wattage resistors (look at the ones in my vid, but the big ceramic one is kinda overkill)
codex653 1 year ago
@codex653 Well the wattage rating could be really small but i dont really know how much it is because I used resistors that my brother collected in a box. I didn't have any access on higher wattage resistors so I had to use them. I'll buy some better ones sometime soon, though.
RRdigy 1 year ago
LOL...you're a poopdick hardstyle905.
IHMAWTD 1 year ago
@IHMAWTD Why don't you go kiss your mothers behind.
hardstyle905 3 weeks ago
Can you send me a schema to build own flyback transformer. thank you
joe70725 1 year ago
@joe70725 there is no schematic....there is, however, math! :) do a search on google and type in "flyback transformer operation principles"...that should get you some good stuff. The thing is with a flyback, there is no definite schematic. You have to design it.
codex653 1 year ago
Can you send me a schema to build own flyback transformer, because I have looking for and I can't get it. thank you (cimahiduatiga@yahoo.com)
joe70725 1 year ago
how did you wind on the secondary? did you crack the ferrite core?
machinefan123 1 year ago
@machinefan123 yah, i cracked the core off the flyback...then once i wound on the primary and secondary, i super glued the pieces back together...i explained how i wound the coils in the vid
codex653 1 year ago
First off, I loved the video!
Second, and I may be wrong (its been 10+ years since I read about this) , But I think pushing high frequency electricity through a Xenon tube can emit X-ray radiation if the frequency is high enough. Be careful!
IHMAWTD 1 year ago
@IHMAWTD woah! really?! dang! your right, that IS dangerous! hmmm well, i'm glad i've stopped this project then a long time ago!:))
codex653 1 year ago
@IHMAWTD u need to pas a 'limit' to get xrays. electrons need to be quite fast when they hit a target to emit X-rays, from what i know , in high vachum you need like 15kv+ to emit considerable X-rays (not just a few particles per minute or something) in a xenon tube, lightbulb other thing with medium or low vacum you need a litle higher voltage like between 30 and 100kv. frequency has no influence, just intensity and voltage.
this looks like less then 10 kV so it's safe :P
stalkersas 1 year ago
@IHMAWTD If you don't know what you're talking about, shut up please. Seriously, all these people giving their advice are getting on my nerves. X-ray this, microwave radiation that, blablabla, just because you have heard *something* *somewhere* at some time. More people die in car accidents than people doing our hobby. In fact, I have never heard of anyone dying while making experiments like this.
For the record, I can assure you just by watching it, that no x-rays were generated in this video.
hardstyle905 1 year ago
@hardstyle905 you're a fucking idiot. I will say what I want, where and when I want. Just because you're too much of a inward homo to care about a stranger's well being, does not mean the rest of us are. If you want to continue this conversation, come out here to Bakersfield and I'll stuff your wimpy bitch ass in my microwave and teach you all about the dangers of high frequency/high voltage.
IHMAWTD 1 year ago
Comment removed
hardstyle905 1 year ago
you may want to ditch the dead beat transistor driver, and push that thing with a 555/mosfet driver. you can push ALOT more wattage into it at alot higher voltages.
zker666 1 year ago
@zker666 haha yah i know....i've actually ditched this project a long time ago now...i've switched over to amplifiers and stuff..infact i'm actually using the 555 in a switchmode power supply i'm building:)
codex653 1 year ago
Yours is a good explanation of how your system is built and how it works. Wish more presentations were as good.
As for the xenon bulb, (it's pronounced "zee-non") it appears to be plasma, little lightning, forming. You're going well past the valence shell ionization phase.
Also, it takes approximately 20kV to arc across one-quarter inch of dry air, from the looks of your open spark, your system easily exceeds that value.
Good luck with getting an ohmmeter having higher values.
DickWeinerUSA 1 year ago
@DickWeinerUSA thanks man:)
codex653 1 year ago
@DickWeinerUSA lol i was about to see if any one left a comment like yours or i would have told him the same thing:P....
rockman378 1 year ago
okay
merdekamotor 1 year ago
pleaswe reply does it matter than i use higher wattage rezistors?
plavins1 1 year ago
@plavins1 sorry this took so long, nope! it doesn't matter! although you may want to not use wirewound resistors...i'm not sure what the inductance would do to the circuit, if anything at all.
codex653 1 year ago
i loved it
stupidstunts90000000 1 year ago
@usernameABCDXYZ meaning the resistors looking like big ceramic ones....i said before that they have to have the same value as the ones given in the link in the description
codex653 1 year ago
@usernameABCDXYZ sort of...if you put too much power through it (which is controlled by the resistors) you can burn out the secondary of the flyback transformer...they have very very very small wire that can't handle much current.
codex653 1 year ago
@usernameABCDXYZ well the circuit calls for x1 240 ohm resistor and 1x 27 ohm resistor...these are meant to somewhat bias the transistor...speaking of the transistor, you are using a 2n3055 right?? i've found very few transistors besides this one that works.
codex653 1 year ago
@usernameABCDXYZ the circuit doesn't have to have the specific resistors that i am using (the big ceramic ones). i just had those in my junk box and decided to use them...any resistor that has the same value as the ones given in the link in the description will work
codex653 1 year ago
will adding more windings make it more poweful?>
MaryStewart 1 year ago
@MaryStewart well technically no, in order to get more power you would either have to increase the voltage supply or increase the current draw through the circuit. all adding more windings will do is increase the output voltage. but because this is a transformer, the actual power stays the same. so X watts in= X watts out roughly...you can just vary the proportions between voltage and current. so because this is a step up transformer, the voltage rises proportional to the current drop.
codex653 1 year ago
can i use this driver for normal flyback from PC monitor ?
Dri0m 1 year ago
@Dri0m yup! you most certainly can!:D
codex653 1 year ago
can i use other transistor...
San1995007 1 year ago
@San1995007 yah but i haven't found too many that work really well...this by far has been the best transistor to use
codex653 1 year ago
how many threads are on the secondary coil ?
Dri0m 1 year ago
@Dri0m oo, hmmm...i'm trying to remember....i think it's somewhere along the lines of 600-700 turns???
codex653 1 year ago
ваши буржуйские трансформаторы хуйня,они со встроенными умножителями.
MSgunDOS 1 year ago
your using a 555 timer? yes??
if so the power output will be square wave not sine wave if your wondering why the arcs in the tube are moving in strange ways
xXxXpatboiXxXx 1 year ago
@xXxXpatboiXxXx sorry this has taken me so long to reply, but no, i'm not using a 555 timer. back when i built this i didn't really want to be using any IC's just cause i wanted something quick and fast to build...i'm using the circuit that is given in the link in the description.
codex653 1 year ago
i don't know but I think that you have there around 8 to10 KV. :)
buddhafollower 2 years ago
This has been flagged as spam show
I can't get this to work!
I've got a 2N3055 transistor, the right ohm resistors and a 12V scooterbattery as powersuply.
I used the same schematic that you used, but no result :S
I'm not really sure how to wind a feedback on a regular flyback.
Help?
lilletizz 2 years ago
well first off i would check the scooterbattery with a voltmeter to make sure it is actually charged. this thing won't work too well if the powersupply doesn't work. lol
a feedback winding in this circuit is a coil of wire, just like the primary, that you wind ontop of the primary and has only about 3-10 turns or so. oh and wind in the same direction
codex653 2 years ago
The battery is fully charged and working.
Its the feedback I'm strugling with.
I tried to wind it around that ferite thingy that sticks out of the flyback. Didn't work..
But thanks! I'll keep on trying ^^
lilletizz 2 years ago
Hooa, I got it to work! :D
But the arc is ridiculously small..
lilletizz 2 years ago
@lilletizz haha good job!:D
codex653 1 year ago
Was the core from a CRT Monitor flyback, or TV flyback? I'm trying to figure out the best way to get the most use out of my CRT monitor's flyback
GearzVoNKod3 2 years ago
on this one it was from a CRT Monitor flyback , but it doesn't really matter whether it is a tv flyback or Crt flyback...this is a self resonating circuit so the iron core's make up or what it is from doesn't matter too much. it still does but it's not huge
codex653 2 years ago
remake ur circuit, use the zvs. you will see a huge increase in output =]
dannybeckett01 2 years ago
yup i have! this video is from so long ago i don't even use this circuit anymore. i have a zvs that can drive 450 watts so it's all good now.
codex653 2 years ago
excellent! you used the zvs with this home made flyback?
dannybeckett01 2 years ago
yeah i have...not this specific flyback tho, i have long since destroyed it and built a new one and designed it better. with the new one, i don't use it much cause the zvs driver put's out too much current and melts my electrodes when i arc them :P but hey, atleast i know i got some power behind it!
codex653 2 years ago
Man, what the hell. You could've used an ordinary lightbulb (not the CFL though) instead of the resistor... :P It would cost you far less.
TheReal1inflater 2 years ago
resistor? you mean my big ceramic wirewound resistor that i have in there? i don't buy my parts anyways, all the stuff i have in there i scavanged for....ha i haven't bought anything to date yet
codex653 2 years ago
Whats the spacing of the secondary coil. The one with teflon tape on it. Very nice output by the way with batteries. Nice setup aswel ^)^
Nanovirus5995 2 years ago
thank you! what do you mean by the spacing? could you please clarify?
codex653 2 years ago
Your welcome. I was trying to ask how far apart the windings were on the teflon taped coil. Also another request, Could you possibly make another video on your new setup? With the diodes on it? Thank you anyway for this video.
Nanovirus5995 2 years ago
yeah sure! i can try tho, i don't think i have this exact flyback anymore but i'm pretty sure i have another one i made around here somewhere. as to answer your question, the turns have no distance inbetween them. they are closely wrapped to fit as many turns as possible on a layer (with a quarter inch gap left on the end to prevent arc over) then the layer is covered with packaging tape and a layer of teflon tape. i have found tho that several layers of packaging tape works better than teflon.
codex653 2 years ago
What kind of transistor did you use? because that one looked different than the one in the diagram. Also, I don't know too much about electric circuits, but would a 220 ohm resistor have the same effect, or does the watts listed with it change it's effect?
LordTommy33 2 years ago
in this video i used a 2n3055 power transistor that was mounted onto a heat sink...with the configuration i have now it broke pretty easily. a suggestion to make to the circuit if you build it is to have a diode going inbetween the collector and emitter of the transistor with the little silver line on the diode pointing towards the collector. this protects from highvoltage feedback spikes that would normally destroy the transistor. the diode really really prolongs the life of the transistor.
codex653 2 years ago
i used a 800v 1A diode for that by the way. as for the resistors, a 220 ohm one is perfectly fine. it's the same one i used here also. and the second smaller resistor i used is a 18 ohm. yeah the wattage does change with a resistor change because either more current is getting through or less current is depending on the value of it. you can supe this circuit up a bit tho if you want....that one diode upgrade really helps.
codex653 2 years ago
on my new circuit i have a 2n5885 that is driving it, (it has a higher current and voltage rating but you would be just fine with the 2n3055 ), i use two diodes going from the emitter to collector instead of one. my larger value resistor is now 240 ohms and the smaller is 22 i think. now one thing you will have to do if you make your own flyback and even if you use a flyback from say a tv or something is fiddle around a bit with the feedback windings.
codex653 2 years ago
too many or too little turns really reduces performance...the primary is not as picky, 5-20 turns usually works...keep in mind though that with lower primary turns equals higher output voltage but raises the current which equals a shorter flyback lifetime....that's why i like to make my own flybacks from the original iron on them when they break... you can use wire that can handle the current...if you are making a flyback and want some help with it message me and i'll be happy to respond! :)
codex653 2 years ago
xenon- "zee non"
Nice flyback, hope to make one myself sometime
FrigginSmift 2 years ago
thank you! yeah i just now learned that in chemistry that it was pronounced that way :) haha
codex653 2 years ago
what's the weird grayish thing with all thos eslits in it? i got one from a computer and i have no idea what is it is.
knoxarama 2 years ago
that weird grayish thing you are talking about is a heat sink. definitely keep that one you found. it is very very useful at times! this circuit gets VERY hot and that heatsink is used to take away the heat from the transistor so it doesn't blow. i unfortunately don't have one big enough for this circuit so i have to buy some fans to mount on it. those help alot if you have those too.
codex653 2 years ago
thanks. i found that out earlier after spending a lot of time looking around. got a ton of those things now. 'bout four of those kind and one for a proccesor.
knoxarama 2 years ago