Author Topic: Electrolytic Decade Capacitor - Low Budget Project ^__^  (Read 1718 times)

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Offline PhynixVikingTopic starter

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Electrolytic Decade Capacitor - Low Budget Project ^__^
« on: December 11, 2012, 09:04:24 pm »
Hello everyone!!!
I've been repairing things for many years now and especially in the last 3 or so years blown caps (in computers/monitors/etc) have seemed to increase. I'm getting more and more computers that have silly blown caps in them!

Well... normally they are in parallel and if I end up replacing them, and then testing the computer only to find out something else is damaged too... then I loose those caps that I put on. (I never like to remove them because re-using them too many times will cause them to damage.)

SO! I thought I would make a Electrolytic Decade Capacitor in order to set the value, and solder on a couple/few wires to the board and then test it before I waste caps just to find out its still broken.

I wanted to share this idea with you all and also show pictures of my project. All together it was only about $5.00 or so.
(I used salvaged caps and scrap wire! New caps and wire might make the cost higher but I'd imagine still be under $10 or at least under $15)
Anyway!!! So far I'm loving it, and its a great tool to have! ^__^

The cable (last picture) is so that I can plug in my oscilloscope to the project/tests as a bonus! I also have a "normal" screw terminal plug (a old 75/300 ohm converter that I removed the coil from.)

PS: My cap tester is a cheap crap one but it works pretty good for higher values. (under uF its really off) And I did not yet add the "discharge" resistor to the project yet, I wanted to get some opinions and do some math before just adding any old resistor to it, lol.
Check out my youtube! ^_^
https://www.youtube.com/user/PhynixViking

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Offline PhynixVikingTopic starter

  • Regular Contributor
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  • Posts: 51
  • Country: us
    • Phynix Viking at YouTube
Re: Electrolytic Decade Capacitor - Low Budget Project ^__^
« Reply #1 on: December 11, 2012, 09:10:38 pm »
OHHHH I also... yea... I didn't label the switches yet, LOL  |O
they are...
(to the far right)
10,000uF
5,000uF
3,200uF
2,200uF
1,000uF
660uF
330uF
(off at the top left)
47uf       100uF       Resistor On/Off
(then bottom left)
To Cord
Check out my youtube! ^_^
https://www.youtube.com/user/PhynixViking

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