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Search: Posts Made By: sam_sam_sam
Forum: Troubleshooting Power Supplies and Power Supply Design 03-20-2019, 03:48 PM
Replies: 27
Views: 198
Posted By sam_sam_sam
Re: Voltage Regulators and Heat Issues

I use these boards before and they work very well and you do not need a heat sink on them


http://www.futurlec.com/Mini_Power.shtml

I know that the input for this chip is 12 volts and drop...
Forum: Troubleshooting Power Supplies and Power Supply Design 03-17-2019, 08:32 AM
Replies: 9
Views: 118
Posted By sam_sam_sam
Re: Battery bank made from 3 series of 2 parallel LGDAS31865 cells

That depends on protection board it has some of them will not charge the batteries if the voltage is below a certain point

Here is how you can check if this is the case or not put the battery...
Forum: General Electronics Technical Discussion 03-17-2019, 08:07 AM
Replies: 4
Views: 112
Posted By sam_sam_sam
Re: Fix Thermocouple

Thanks for sharing this I have not tried it this way before but I will keep this in mind for next time
Forum: Troubleshooting Power Supplies and Power Supply Design 03-16-2019, 04:49 PM
Replies: 9
Views: 118
Posted By sam_sam_sam
Re: Battery bank made from 3 series of 2 parallel LGDAS31865 cells

Let see some pictures of what we are talking about
Forum: General Electronics Technical Discussion 03-15-2019, 11:32 AM
Replies: 4
Views: 112
Posted By sam_sam_sam
Re: Fix Thermocouple

Does it work when you put them together if so then yes if you can welded if you can do it with out distorting the two wires

Or you can twist the two wires together and use a wire crimp and cut the...
Forum: General Electronics Technical Discussion 03-13-2019, 07:43 AM
Replies: 14
Views: 197
Posted By sam_sam_sam
Re: Air Supply Systems

You can do it but it will not last long because the compressor is made for refrigerant not for air when the oil in compressor mixes with air causes the oil to become an ascetic and a tack the winding...
Forum: Troubleshooting Power Supplies and Power Supply Design 03-12-2019, 07:44 PM
Replies: 17
Views: 495
Posted By sam_sam_sam
Re: OCZ Fatality 700w PSU Repair Help

Another one saved from the land fill

Good work
Forum: General Electronics Technical Discussion 03-09-2019, 06:50 PM
Replies: 4
Views: 86
Posted By sam_sam_sam
Re: Thermal Circuit Breaker Problem - can we fix it?

I would recommend replacing it with two separate breaker because I would not be surprised if the other half might be damaged in some way
Forum: General Electronics Technical Discussion 03-08-2019, 10:19 AM
Replies: 4
Views: 86
Posted By sam_sam_sam
Re: Thermal Circuit Breaker Problem - can we fix it?

That part number might made for just that company that made that amp
So you might not be able to get the exact part
Forum: Troubleshooting Power Supplies and Power Supply Design 03-03-2019, 04:17 PM
Replies: 8
Views: 196
Posted By sam_sam_sam
Re: Dell model L275E-01 pn: Wu142. Optiplex 755 small form factor.

I have repair a couple of this type and they are a pain in the ass to do everything is cramp in a small place
Forum: General Electronics Technical Discussion 03-03-2019, 11:20 AM
Replies: 20
Views: 356
Posted By sam_sam_sam
Re: Microwave Issue

Not exactly because this is high current transformer

When you power the transformer up with no load your amperage might be around 6 or 7 amp and your transformer should be humming a little bit ...
Forum: Troubleshooting Power Supplies and Power Supply Design 03-03-2019, 09:39 AM
Replies: 17
Views: 252
Posted By sam_sam_sam
Re: Recapping Mean Well MWP-606

I have one question for you

Does it have good cooling or is everything cramped in a small space

If it is cramped in very small space I would recommend using automotive grade capacitor to me...
Forum: Troubleshooting Power Supplies and Power Supply Design 03-03-2019, 09:32 AM
Replies: 18
Views: 209
Posted By sam_sam_sam
Re: Need alittle help with a fan transformer

I would recommend that you use an incandescent light bulb in series with this motor to see if it spins with way you are wiring it

This is for safety reasons
Forum: General Electronics Technical Discussion 03-03-2019, 08:27 AM
Replies: 1
Views: 59
Posted By sam_sam_sam
Re: controlling a small engine throttle with an RC servo

You are going to have use a voltage divider off of the 24 volt motor that you are using as a generator ( so that your input to the servo controller never see more than 5 volts) [ you need check how...
Forum: General Electronics Technical Discussion 03-03-2019, 07:34 AM
Replies: 22
Views: 309
Posted By sam_sam_sam
Re: The extrasensory perception solder iron.

Here is what I find

If you use a iron that does not have any type of temperature controller then you will have to continually have to clean the tip

If your iron has a temperature controller...
Forum: General Electronics Technical Discussion 03-03-2019, 07:18 AM
Replies: 3
Views: 91
Posted By sam_sam_sam
Re: The extrasensory perception solder iron. First 12v double solder irons in the wor

Are you talking about the [ ( cartoon) Flint Stone ] method
If so

This is funny
Forum: General Electronics Technical Discussion 02-28-2019, 04:25 AM
Replies: 3
Views: 91
Posted By sam_sam_sam
Forum: General Electronics Technical Discussion 02-24-2019, 10:21 AM
Replies: 18
Views: 250
Posted By sam_sam_sam
Re: Temperature control ?

You have a good point about hysteria and filtering which I would have to take into account when do this concept in designing the project that I have in mind

Thanks for sharing this
Forum: Troubleshooting Game Consoles & Other Weird Devices 02-24-2019, 05:57 AM
Replies: 12
Views: 277
Posted By sam_sam_sam
Re: FeelTech / Kuman FY6600 DDS Function Arbitrary Waveform Generator repair

This is very interesting in how you found the shorts that were on this board
This was very interesting reading I enjoyed it Thanks for sharing this
Forum: General Electronics Technical Discussion 02-24-2019, 05:51 AM
Replies: 5
Views: 100
Posted By sam_sam_sam
Re: Replacing 1uF 450V AC ?

Because of this you need to have the right type of capacitor other wise the motor might not start running or run to fast and or over heat

I hope this helps
Forum: General Electronics Technical Discussion 02-23-2019, 05:31 AM
Replies: 20
Views: 356
Posted By sam_sam_sam
Re: Microwave Issue

You can also check the Magnatron output with a small cfl tube inside the microwave oven
You should only use one that is only about 2” long with the terminal end taped if the magnetron is working...
Forum: General Electronics Technical Discussion 02-22-2019, 03:32 PM
Replies: 18
Views: 250
Posted By sam_sam_sam
Re: Temperature control ?

I have taken process controls in trade school about 10 years ago

The person that did video was pretty good at explaining it in simple terms that why I made the comment that I did earlier in post...
Forum: General Electronics Technical Discussion 02-20-2019, 01:06 PM
Replies: 18
Views: 250
Posted By sam_sam_sam
Re: Temperature control ?

Also nice and good but now it has become a lot more complicated in the design of what we are talking about sure you might get better accuracy but at what cost money and other wise
Forum: General Electronics Technical Discussion 02-19-2019, 07:47 AM
Replies: 18
Views: 250
Posted By sam_sam_sam
Re: Temperature control ?

This is true for most things that the more money you spend on an item the better it is most of the time but greatly depends on where it was made a lot more of the time at least that is what I find...
Forum: Troubleshooting Power Supplies and Power Supply Design 02-17-2019, 04:06 PM
Replies: 15
Views: 331
Posted By sam_sam_sam
Re: X-Force 200 "Power Supply"

That power supply from hell like the person doing this you tube video I would not even think about plug it in into outlet

Really who thought of this crap knock off from a knock off and take as...
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