Results 1 to 3 of 3

Thread: voltage dubblers with old surpluss parts

  1. #1
    Join Date
    Nov 2014
    Location
    mid michigan
    Posts
    792

    Cool voltage dubblers with old surpluss parts

    I have a question on voltage doublers and multistage devices as well, i have always used ceramic disc caps for these due to high input frequency. but now with the other thread on making flash lamps i am building a doubler that one of our great members pointed out as i cant find my 0-2kvdc supply, only and ac one and my glassman is temperamental at running a low voltage load as it's a 0-30kv, i had a concern that a slip of the knob with blow up a multi thousand dolor cap, so i cleaned up and restored a 70's era break down tester that is 0-1.5kac, and i can push it past to 2.3kvdc as for some reason was made to run on 100 volt main.
    after my quick description of my stuff o wanted to upgrade the capacitance of the doubler from .2MFD per cap to 2mfd in hopes of a faster recharge of my main storage caps

    The rating on the cap is 2mfd @4000 VDCW, these are non polarized so if i derate the voltage they should work great or that's my understanding of it, the derated voltage per cap should be 1,500. The diodes i am using came from microwaves and have so far done very well. my current doubler only charges the main system at 1ma and these diodes are .800-1.2 amps.

    Does this all sound as a workable solution?

    The main power supply's current is at least 333ma, when i was a whelp we use it to set scrap electronics on fire
    Polk SDA SRS, Parasound HCA 3500, Luxman M117, Onkyo 504, 7.62X39, sometimes a ball on a string is the greatest of toys for us nonhuman types. oh and some lasers, lots of lasers

  2. #2
    Join Date
    Nov 2014
    Location
    mid michigan
    Posts
    792

    Default

    I finished the upgraded voltage multiplayer but it's making a ticking noise, but has a normal output voltage, i put a ac current meter on the input 60hz side and when it ticks i get a current of over 100ma, my power source can do 300ma but it even tripped the over current alarm so i thibk one of my "shiny" caps has a connection break to one of the terminals, not my 160mfd 2.5k unit but one 2mfd 4,000 volt ones, made my plastic capacitors inc, i hositly have never had a failure of that brand unless i over volt-aged it

    for the troubleshooting is it ok to use different value caps? i.e one .5mfd and a 2 mfd, i have never built a multiplier with different vale caps, hence my question
    Polk SDA SRS, Parasound HCA 3500, Luxman M117, Onkyo 504, 7.62X39, sometimes a ball on a string is the greatest of toys for us nonhuman types. oh and some lasers, lots of lasers

  3. #3
    Join Date
    Nov 2014
    Location
    mid michigan
    Posts
    792

    Default

    i fixed the problem, i had a bad high voltage output terminal that was arcing on the inside
    Polk SDA SRS, Parasound HCA 3500, Luxman M117, Onkyo 504, 7.62X39, sometimes a ball on a string is the greatest of toys for us nonhuman types. oh and some lasers, lots of lasers

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •