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steven

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Everything posted by steven

  1. :)the last time i dismantled a photo flash capacitor i found the negative foil to be thicker than the positive foil or electrode so i put my diode chain in the return to the flyback transformer
  2. :)ive half completed another flyback driver circuit to drive that lower voltage output disc shaped flyback transformer, and dispite the seccessfull chargeing of that photo flash capcitor over and over again ,ill be getting parts to make a second one ive got a container full of camera photo flash capacitors and ive tried them out and they all charge up good, the best thing is it works and ,i dont know why they dont blow, if the voltage chargeing them is anywhere near excessive, but i think that they can handle it ok and my whole container of them has survived no problems so ill be constructing it all into a new pvc circuit box when i get the storm water pipes to make them from . a string of diodes from the hv output of a flyback can be used acording to some info i found on useing a flyback transformer to chargeing hv capacitors with but it dosent give you any circuits to do it , so i used bits and peaces of ideas from circuits to come up with this one that worked,
  3. :)ill scrap the ignition coil idea and stick with the one ive tested
  4. :)audio guru 330 volts rated capacitor isent experimenting wonderfull my neon has 240 volts on it my sieries resister works my idea to try an ignition coil was depending on reduceing that positive hv out down to the level i needed, ive got plenty photo flash caps to blow up in the name of science
  5. audio guru here is a few picture of a simple photo flash circuit note the 1m resister i used one to the neon, well to one side like the one in the photo, now the diode theres one so i used 2 you probably cant see if , then theres the d965 or75 transister and you have a few more resisters and the 6kv trigger coil and the transformer , i used the disc shape version the flyback transformer my diodes are in the return not hv hv out, but it works and my capacior may be a little over charged as there not suposed to tingle when you put your finger across it but then i dont know why i havent blown that capacitor yet, the voltage rateing for that capacitor maybe they can handle a bit more, than they siad they can as for a safety margine
  6. audio guru the miniute i throw that switch the frenquency of the circuit going by the sound it makes is allready high , the high value resister on one side of the neon which is the same as ive found in most cameras ive pulled to bits works ok , i can try find a timer relay circuit to shout the power off the miniute the neon comes on so as to be as a safety measure to prevent over chargeing but at the time being, i swicth the driver circuit off when that neon comes on, ive allready stared investigateing the idea of converting my single ignition coil driver into a high voltage photo flash capacitor charger, all i need to do is use the same circuit but use a higher value resister to reduce the hv out down to a tiny amount. well although it should be low enougth to not even create the tinyest arc but yet it charges faster.
  7. :)great to hear from you audio guru the disc shaped flyback transformer i used dose not have the biult in high voltage trippler so without that i only get tiny arcs that are so small that i have to be nearly touching the treturn to even see this. now from that tiny arc hv out ive got a 100r resister which runs to one side of the neon rated at 240 volts not 140 like i think mistakenly said and from there it goes to the positive of the photo flash cap under charge, in the return line ive got 2 diodes so this is a bit like a half wave rectifier from there it goes to the 1m resister which goes to the other neon leg so from there it goes to the other capacitor termninal and ive managage to recharge that cap seccessfully , takeing into concideration that all the phased out pocket cameras with biult in flashes ive dismantled it was very comon to find at least one diode in them marked as free although i cant identify it i can replace it with the 1n4007 and it works fine in this cae i used 2 diodes reated at the same voltage but higher current as for the resister to the neon well there pritty comon at times, drawing on the details of the circuit of one camera i pulled to bits so i threw one in to, then as for the neon there rated normally at 90 to 240 volts here so i used that because the arcs of the disc shaped flyback are so tiny it helped in the chargeing process and 15 seconds is not bad concidering it takes normally longer for my ex pocket camerea to charge up to light that neon
  8. :) powering just one ignition coil with the ignition coil driver circuit puts out an arc that i could allmost compare with the small arcs put out by the disc shaped flyback transformer without a biult in high voltage trippler, so i reckon i could allso use the ignition coil powerd by the simple to biuld ignition coil driver circuit to charge up these high voltage photo flash capaciotrs, allso so ill be testing that out as soon as i grab a few more ignition coils from the car wreakers for $5 each,
  9. :) here is the simple circuit i used with this disc shaped flyback transformer, remember the flyback transformer only puts out tiny arcs when driven by the driver circuit, but i cant get over how such a simple circuit, allowed the disc shaped flyback transformer, without a biult in high voltage trippler, to charge up a photo flash capacitor so fast that it made that near defeaning pop when i shorted it out
  10. :) in these pictures is the disc shaped flyback transformer i used in the test to charge up a high voltage photo flash capacitor , allso the simple circuit i used, with a neon light ,to indicate the capacitor to be charged, this circuit, well the disc shaped flyback tranformer was driven by the same circuit i allways use to drive my other high voltage flyback transformers, which have the biult in high voltage trippler. the disc shaped flyback transformer i used did not have the biult in high voltage trippler, and even without the capacitor chargeing, and neon circuit ,it will only create tiny arcs to the return . but with the circuit the sound frenquency is high as you can hear it. and the high voltage photo flash capacitor took only around 15 seconds to be charged up, in my experiment, before the neon globe came on. when i shorted out the high voltage photo flash capacitor it made a near deafening pop that rang through my ears for a short time. here are the pictures and details, more will be added when i construct it all into a home made pvc circuit box, the flyback driver circuit that i used is the one posted in the high voltage stuff section and was originally the vortex canon circuit, of which i used part of, and this is nearly the same as the transformer driver circuit.
  11. steven

    Forum Rating

    if we do over a thousand posts we become microsoft chair men just kidding
  12. i like to help you on this one bakr but ive never designed a flyback transformer before and i use mainly the ones with the biult in hv trippler, but you can allso use transformers in reverse mode to , power, from your flyback driver circuit it dose ok , the turns ratio for the flybacks are different i think to the transformers , so so if the inductances are simliar you may find a few ideas around that rarether than to try biulding one,
  13. :) hang in there bakr ive allready started the exsperiments and research stagers for high voltage capacitor chargeing and have posted the hand powerd high voltage photo flash capacitor, charger information , ive recently tried it with my flyback driver circuit powering a disc shaped flyback transformer with great results, and ill be putting it together as soon as i get the matierials to biuld a circuit box for it. ill be biulding and ignition coil type hv capacitor charger to , now the flyback transformer i used was disc shaped without the in biult high voltage trippler , so if i was to use one with the inbiult trippler ill have to do some more exsperiments with that as ill be haveing much higher voltage output and if it exceeds the voltage rateing of even a 15 kv capaciotr , even though i dont have any, it may blow them, so ill have to get hold of some higher voltage capacitors to try. on it the flyback type hv capacitor charger ive put to gether to exsperiment with charges the photo flash caps up in around 15 seconds somewhere so ill post the results as i get them and you can use anything out of it to reach your goal.
  14. :) ive been conducting some tests with the flyback driver circuit i allways use as posted ,and this test i power my disc shaped flyback transformer i got tiny arcs from the hv output to the return so i put together this simple circuit to use with it in chargeing up high voltage photo flash capacitors with spectacular results , so ill be posting this one as soon as ive designed another home made pvc box to put it in and another driver circuit from the schematics posted , this one will charge up capacitors faster than my hand powerd high voltage photo flash capacitor charger will
  15. :) ive done some other exsperiments useing , this time a disc shaped flyback transformer and some slight modifications to the circuit i used to charge up my high voltage photo flash capacitors with, with spectacular results. in under 15 seconds i was able to fully charge a high voltage photo flash capacitor so fast that when i shorted it out , to discharge it, it made a bang so loud it left my ears ringing for a short time so ill be posting the next one soon and hopefully another one useing am ignition coil driver and coil to
  16. :) ive just tested this on most of my other high voltage photo flash capacitors and they all charged up ok , the next idea is to use one of my flyback transformers driven by a flyback driver circuit to try get them charged up, hopefully , a flyback transformewr without the biult in high voltage trippler would be the first , to try
  17. :) the 1m 1/4 watt resistor solderd to the 120 volts neon is not visible in the pictures, as it is taped over with black tape at the neon globe leg.
  18. :) the picture that wasent with the details are on the first page
  19. :) the picture for the first post here i posted are gone missing so i hope they can fix that as only the exsplanation is here
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