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Author Topic: Circuit board voltage  (Read 2248 times)

Offline Angelic

  • Jr. Member
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  • Posts: 73
Circuit board voltage
« on: December 25, 2020, 11:24:31 PM »
I have several interesting circuit boards I would like to experiment with. But I am not sure if they require ac or dc voltage. Or how much. Can anyone help me figure this out?

Free Energy | searching for free energy and discussing free energy

Circuit board voltage
« on: December 25, 2020, 11:24:31 PM »

Offline Thaelin

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Re: Circuit board voltage
« Reply #1 on: December 26, 2020, 01:43:43 AM »
  Start by looking for voltage regulators ie: 15v 12v 9v 5v. Take a list of the chips and or IC's and look up their specs. Trace the power rails back to the input plugs. Big caps usually have the job of smoothing out the power inputs, see what voltage they are.
  When you know the input, start out with a variable supply at 5v  and look at the chips for activity on their pins.


Have a fun journey.
thay


Offline Magluvin

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Re: Circuit board voltage
« Reply #2 on: December 26, 2020, 02:30:04 AM »
I have several interesting circuit boards I would like to experiment with. But I am not sure if they require ac or dc voltage. Or how much. Can anyone help me figure this out?
Post some pics.  Some circuit boards have identifying labels or numbers that can be searched to find out what they are for.
Mags

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Re: Circuit board voltage
« Reply #2 on: December 26, 2020, 02:30:04 AM »
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Offline Angelic

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Re: Circuit board voltage
« Reply #3 on: December 26, 2020, 03:29:56 AM »
It will take a few days to get pics. I love high voltage circuits that can be purposed.

Offline Oversize

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Re: Circuit board voltage
« Reply #4 on: June 28, 2021, 08:50:54 PM »
9v and 5v

Free Energy | searching for free energy and discussing free energy

Re: Circuit board voltage
« Reply #4 on: June 28, 2021, 08:50:54 PM »
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