pucho812
Well-known member
What would you say would be the current draw for running around 160 X 1731's Yes 160 of them. Working on a console that has a total of 160 of those? I am thinking 25 milliamps each on average. so minimum 4 amps...
mjrippe said:Sounds logical. I would go with 5 amps at least. Can you post photos of the board?
This logic does leave your option but it also leaves the option that the 2 supplies are interacting in some way.pucho812 said:I found the following that I can turn of the +/-28vdc and the noise goes away, I can also do that with the +/-15VDC and the noise goes away. I can leave the +/-28VDC on and shut the +/-15VDC off and noise disappears. all that tells me at this point is I am shutting down a section on all the UOAB cards which make up the console. the UOAB's are comprised of 2 basic stages the melcor at +/-15VDC and the emitter follower running at +/-28VDC
What he saidTheJames said:You have two different bi-polar power supplies...
Not necessarily a bad thing....But what's the ground like between them?
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