steven

here are some of the latest pictures of the latest high voltage photo flash capacitor charger , and included is that simple capacitor charge indicator circuit from the coil gun topic in the high voltage stuff section , of which the indicateing led is above the neon globe on the front pannel of the unit now although i only have the end pannel and lid to do, all the wireing except for the battery charge input to charge the battery up and the power switch and led have yet to be done

i did try useing an ignition coil for a capacitor charger and i used the same parts i used for the high voltage photo flash capacitor charger , thats the diodes and resisters and neon but it dident work so i think ill need a chain of diodes instead of just 2 like in the high voltage photoflash capacitor charger

audio guru the orange wire i put there because i was out of red wire for the positive i havent measured the voltage output from the high voltage photo flash capoacitor charger to the capacitor yet as the capacitor charge indicater circuit is in between that all

:)this picture was taken before i had to

here is the circuit thanks to mr heckles the inputs i run to the high voltage photoflash capacitor charger outputs that go to the capacitor being charged

the inputs to the simple coilgun capacitor charge indicater i derived from the coil gun circuit i conect to the high voltage photoflash capacitor charger outputs that go to the capacitor being charged works well here ill post the pics of the latest high voltage photoflash capacitor charger as soon as its all finished ,complete with the circuit from the coilgun circuit

the link to that other coil gun site now i checked it out and the 2n3094 transistor and led and 1k resister in the circuit there used to indicate the capacitor charge ,i used those 3 componenets and intergrated them into the high voltage photo flash capacitor charger and the 1k resister kept burning out so i changed it to a 1/2 watt and it works great and so dose the transister to , in fact the transister still tested ok even when the 1/4 watt 1k resister was burning out so those few parts there the transister and 1k 1/2 watt resister and led , when intergrated into the high voltage photoflash capacitor charger work ok , now i used a 10k potentiometer to which i forgot to mention so with the adjustments i make with it the led comes on or blinks when the cap is charged or something like that , so its handy to be able to intergrate a small peace of one circuit to modify another ,

:)the magnetrons in microwave ovens are used to make the home made high energy radio frenquency guns , these were said to be able to set off land mines at a distance , but if you have the powerfull version i think useing the millitary magnetrons you may get lucker then

the best ways are herf guns ,thats high energy radio frenquency guns and scalar waves, herf gun circuits are in the forums somewhere , you may like to look at the min emp boc circuits to

thankyou for the input, greatly apreciated , with the high voltage and current in the 350 volts photo flash capacitors i reckon i may be able to channel that voltage through the 35000 volts bridge rectifier i made of microwave oven diodes at least it may give great reverse voltage protection , with that exsperimental high voltage bridge rectifier i never got to test yet that i posted to the high voltage stuff section well im looking at the option of testing it on my simple hydrogen and oxygen from tap water exsperiment i posted to the topic , playing with hydrogen and see if i can speed da process up faster hope fully

thankyou audio guru at least someone apreciates me autopsy on dead high voltage photoflash capacitor its strange how the foil is grey and brittle and breaks so easily and with no holes in it or visible damage i once pulled a microwave cap apart and its foil was still like foil and not grey but around 16 feet long or over and had holes in the foil down near the end as if the insulation was broken or punctured buy arcs ,

:)ive did some more exsperiments and testing of the high voltage photo flash capacitor charger and by the fels of the charge on the capacitor it must be over chargeing so it appears to be ok but you can use a current limiting resister to help preserve the life of the capacitor , i charged up a 350 volts 330uf high voltage photo flash capacitor and i discharged it a number of times befor it died so i performed an autopsy on the capacitor and found its foil to be in ok condition and with no damaged whats so evr in the foil electrodes but they were grey in colour and so brittle looking you only have to bend it to much or sqeeze to till it breaks or crumbles to bits but when i took the capacitor foil roll out of its can i noticed some electrolyte soloution at the bottom of the can so i think what happend was to much of that electrolyte got boiled away thuis stopping the cap from working , i got the same problem with another circuit i once made and this one if you short it out i fried all the caps and they look in good condition but there values were much less as if there electrolytes were boiled away i think it was and i tested all the diodes on the same board and they were all ok so it was the capacitors at fault .

i used a fairchild photo transister if you look in the forums in the parts data sheets etc it should be in there as i posted the data sheet for it there

thankyou audio guru, my first high voltage photo flash capacitor charger, charges up really fast as the flyback is similar to the one i used in this second high voltage photo flash capacitor charger , i dont now why the led blinks on and off as its chargeing maybe , something there to look into

audio guru the circuit is the same as the 350volt circuit attachment you posted here im not useing a blinking led and the wires from the capcitor charger run to this circuit and from there to the photoflash capacitor under charge, i havent measured the volts in the capacitor under charge yet but when the capacitor is fully charged or more, then i can feell it with my fingers and the led blinks like neon lights in camera flash circuits do when they are charged up its just that i want to upgrade this circuit so the led comes on when the capacitor has the max finger feelable charge on it . now without the circuit i can charge the cap up fully or over easy but when i use the circuit to register the cxharge it is registering the charge in the capacitor that is not full so i can feal it with my fingers so if you have any ideas to uypgrade that circuit i would be forever greatfull . oh yea the cap dosent seem to charge up fast enougth when ive got the circuit in it , but if i was to let the circuit keep chargeing, dispite the led blinking i supose it may do ill try some more ideas and tests soon , ive got to add a capacitor bleed resister yet to help keep the charge up as i may be leaking to much charge i think

:)resistor 2 is a 10k variable resistor or pot

now to look into methods of indicating when the high voltage photoflash capacitor is charged up, and from a topic in the high voltage stuff section here i went to a site of coil guns or something and found a coil gun circuir that has a capacitor charge indicator circuit in it so i derived that peace of the circuit for indicating capacitor charge, from it and biult it to test and so i run the positive wire form the capacitor charge indicater to the output of the high voltage capacitor charger . the same wire allso runs to the high voltage photoflash capacitors positive terminal, and the negative iwell it runs tro the negative output of the high voltage photoflash capacitor charger and allso to the negative of the capacitor being charged , and as soon as i switch the capacitor charger on the led starts to blink on and off to indicate the capacitor is xcharged to a voltage of only half or less of the full charge, so ive got some tinkering and tests and modificatgions to do to get it right as i want it to blink on and off to the full charge . in these pictures here the transistor is a 2n2904 and the resister on the left that runs to the 10k pot wire positions is a 1m resister and the green cap is 0.1uf i think marked as 104 and the led resistor is 1k so you should be able to easily see how the circuit is constructed

nice stuff hope to see more soon

ive never had it runing for a long time to be able to tell you hoe dureble it is and unlles i get it all boxed up and tested fully i dont know howlong the power will last but im confident it may last for days

heres a close up of the board, note the 555 timer is isolated from the board and the pin positons on the board where the timer would of been has wires from them to the timer pluged into the ic socket which is mounted on an ic mounting board and the timer protrudes out the fron pannel so replaceing it is more easy

:)

:)heres the lastest pictures taken before i put the laste terminal post in and the wireings all done and the pannel work except the lid and i tested it and it charged up the high voltage photoflash cap so good you can feel the charge in it with your fingers and it sure goes bang when you short it out on a pair of metal tweezers leaveing a tiny burnt indentation in it , the neon is rated at 110 volts so when it comes on i leave it on a little while longer to get more charge into the photoflash capacitor and i had only 11.21 volts left in my battery i used from my collection , so at 12 volts i would get more better or faster chargeing

sounds like those potentiometers used in the balance controls of stereo systems and radios as when you rotate it to the midle it clicks like it has rachets in it and you get ven sound on both speakers in your stereo so if you need some pull them from old discarded junk as i have to and have some here

thankyou have you biult this yet and tested it chargeing capacitors up may be very usefull , have you tried biulding the high voltage photoflash capacitor charger that ive posted you see this is unlike the typical photoflash capcitor charger circuit of any pocket camera as when you put your fingers over the 2 terminals of the capacitor of the chargeing circuit, in the camera ,you feel nothing but with the one i put together you really feel that charge when you put your finger across the high voltage photo flash capacitor then, makeing me think that it could possibly hold more charge than it states on the capacitor , ive seen on the net a site where someone charges up a few photoflash capacitors in sieries or parralell for a coil gun , but with the photo flash capcitor circuit of the camera charger circuit he used they circuit wont last to long as ive dismantled many camera circuits and even when ive tested them they seem to stuff up to easy if in the case of any shorts and the transisters are not easily availiable to be able to replace them here , when i try to fix it and for most of the transisters used in them the information on then is very hard to find on the net

can you do a more clearer circuit as bits seem to be hard to see and i cant make out ic2 and and one of the tracks is missing at the top