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  1. nebojsa

    Graetz bridge location

    Hi. There is two circuit in atached file. Number 1. is a original. Number 2. is changed by me. Is it OK or is it not circuit I have modified?
  2. nebojsa

    Transformer layers direction

    That means B answer? But without word ''opposite''. Its the same direction, if I got it right...
  3. nebojsa

    Transformer layers direction

    Hmm, I maybe used wrong terms. 3x7 windings I mentioned is one secondary coil. Core of transformer is square (cube, better to be said) of midle E type core. Wire is 3 mm in diameter and core height is 22 mm, so there can be only 7 turns fitted( or windings, but this is maybe wrong term). Wnen...
  4. nebojsa

    Transformer layers direction

    I have to wind a transformer core. There will be 3 x 7 windings. What I dont know is: When I wind first 7 windings from one end to another should I: A/ back wire diagonaly/straight across first 7 windings to the start end and start second 7 windings again in same direction and repeat the same...
  5. nebojsa

    Partialy Discharging Capacitor

    Today, I found this site with very detailed instruction. https://translate.google.com/translate?hl=en&sl=ru&tl=en&u=http%3A%2F%2Fimpulsite.ru%2Fviewtopic.php%3Fp%3D2778
  6. nebojsa

    Unspecified capacitor

    Yes, its over 300v, but i need more precise value. I found in some shematic 360 or 385v. But, could it be higher?
  7. nebojsa

    Unspecified capacitor

    It is capacitor from old metz flash. 44 AF.
  8. nebojsa

    Unspecified capacitor

    I need info for this capacitor, at least voltage value. [mod note - image resized]
  9. nebojsa

    Doubling capacitors in flash?

    https://www.google.rs/search?q=overpowering+the+sun+photography&client=firefox-b-ab&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjfmoKN0ZXVAhVJG5oKHessBEoQ_AUICigB&biw=1440&bih=728 We are going slightly off topic. Too much "Why?" on simple task I want to try. Lets keep this thread on straight way.
  10. nebojsa

    Doubling capacitors in flash?

    Flash (or flashes) for overpowering the sun photography.
  11. nebojsa

    Doubling capacitors in flash?

    Ok. I take caution when working with big capacitors. I will try first with lower combination of capacitors ( I have three 500uF, 800uF and 1000uF) and take test shots with diferent speed and aperture for comparasion. In the end I will atach all of them to test.
  12. nebojsa

    Doubling capacitors in flash?

    No, I dont have low quality camera. And my camera can sync up to 1/250s, but I dont use faster than 1/100s. And maybe I want to stop down aperture to lengthen depth of field. Or I want to overpower the sun with flash like in this photo...
  13. nebojsa

    Doubling capacitors in flash?

    My camera can sync up to 1/250 s, but I rarely use faster than 1/100s. Here is the link. This guy did it with realy tiny flash. http://desmond-downs.blogspot.rs/2010/09/turbo-flash.html A lot of images are not available in link above. On google search can be found first 7 images...
  14. nebojsa

    Doubling capacitors in flash?

    I want to do something like this guy did in this link. http://desmond-downs.blogspot.rs/2010/09/turbo-flash.html A lot of images are not available in link above. On google search can be found first 7 images...
  15. nebojsa

    Doubling capacitors in flash?

    I want to use it on my camera with up to 1/100 sec exposure. Flash duration (acording to some sources on net) is a few miliseconds or less. I think that even doubled power will fit in this 1/100 part of a second.
  16. nebojsa

    Doubling capacitors in flash?

    I agree. Any other part of circuit?
  17. nebojsa

    Doubling capacitors in flash?

    As far as I know - longer. But, what I dont know is it safe for rest of circuit.
  18. nebojsa

    Doubling capacitors in flash?

    Hello... I have a flash with circuit in atachment. Can I add one more capacitor (800uF 330V) in parallel with C3 (500uF 330V) without Inconvenience? If not is there any way to replace some otner parts of the flash to make it work safe with doubled capacitors?
  19. nebojsa

    Partialy Discharging Capacitor

    Excellent explanation! We can finaly close this discussion. This project is too much complicated for me right now. I will leave it for later. I need to improve myself in understanding of electronics. Anyway thanx for your time, patience and knowledge. :)
  20. nebojsa

    Partialy Discharging Capacitor

    I have finally found whole circuit. There is two thyristor and one trigger (switch S2). Can you get some useful info from this circuit?
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