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Search: Posts Made By: sam_sam_sam
Forum: General Electronics Technical Discussion Yesterday, 02:06 PM
Replies: 13
Views: 131
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, 08:47 AM
Replies: 13
Views: 131
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, 05:06 PM
Replies: 15
Views: 255
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...
Forum: General Electronics Technical Discussion 02-14-2019, 11:42 AM
Replies: 90
Views: 875
Posted By sam_sam_sam
Forum: General Electronics Technical Discussion 02-14-2019, 05:24 AM
Replies: 90
Views: 875
Posted By sam_sam_sam
Re: Directly replacing NiMh cells with Li-Ion cells - bad idea ?

Not really if you take out the charging controller board that is in there now and replace it with a battery charger controller board that is made for the type of battery that you want to use you can...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 02-09-2019, 10:53 PM
Replies: 7
Views: 324
Posted By sam_sam_sam
Re: Aliexpress cap meter - any good ?

Are any of these capacitor ESR tester that this thread has been talked about earlier are really any good and worth the money

Or do you need to spend more money to get a better one

I have a...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 02-09-2019, 01:56 PM
Replies: 7
Views: 324
Posted By sam_sam_sam
Re: Aliexpress cap meter - any good ?

Per Hansson

Your Link

Error 502 Bad Gate Way
Forum: Troubleshooting Power Supplies and Power Supply Design 02-09-2019, 08:20 AM
Replies: 28
Views: 230
Posted By sam_sam_sam
Re: SMPS low Vout

Just for good measure I would recommend recapping this unit specifically the capacitor that are less than 100uf
Forum: General Electronics Technical Discussion 02-08-2019, 12:39 PM
Replies: 90
Views: 875
Posted By sam_sam_sam
Re: Directly replacing NiMh cells with Li-Ion cells - bad idea ?

Just wait when something go wrong they will be looking for someone to blame
Forum: General Electronics Technical Discussion 02-08-2019, 12:23 PM
Replies: 90
Views: 875
Posted By sam_sam_sam
Re: Directly replacing NiMh cells with Li-Ion cells - bad idea ?

Why are you playing with fire

Just put in a BSM board for the right battery voltage and right type of battery and use right type of charger

And be done with it and be safe about it

I think...
Forum: General Electronics Technical Discussion 02-06-2019, 09:03 PM
Replies: 3
Views: 210
Posted By sam_sam_sam
Re: Plasma Torch Power Controller—> took a crap

UpDate

Put in the the controller board back in the plasma unit and it works very well

So it had a bad IGBT module a bad 10k ohm resistor

Some very old capacitors

Any controller...
Forum: General Electronics Technical Discussion 02-05-2019, 04:19 PM
Replies: 90
Views: 875
Posted By sam_sam_sam
Forum: General Electronics Technical Discussion 02-05-2019, 04:14 PM
Replies: 90
Views: 875
Posted By sam_sam_sam
Re: Directly replacing NiMh cells with Li-Ion cells - bad idea ?

That is why I charge and discharge these batteries before I use them

I have had some that just do not have the load capacity that they claim to be

I will not use them if they get warm when...
Forum: General Electronics Technical Discussion 01-31-2019, 05:58 PM
Replies: 90
Views: 875
Posted By sam_sam_sam
Re: Directly replacing NiMh cells with Li-Ion cells - bad idea ?

The problem now days is that it is very hard to get Panasonic or Sanyo which are the only ones that worth a shit

I have bought China batteries and they just do not last

Either one of two...
Forum: General Electronics Technical Discussion 01-28-2019, 01:53 PM
Replies: 30
Views: 344
Posted By sam_sam_sam
Re: How to make a spot welder.

All you need is transformer controller and these are easily found today on eBay ( when I get home I will post where you can find some)

The hardest part is getting a 1000 watt microwave transformer...
Forum: General Electronics Technical Discussion 01-27-2019, 09:36 PM
Replies: 30
Views: 344
Posted By sam_sam_sam
Re: How to make a spot welder.

Let me know if you get it to work

Thanks
Forum: General Electronics Technical Discussion 01-27-2019, 06:13 PM
Replies: 30
Views: 344
Posted By sam_sam_sam
Re: How to make a spot welder.

I hate to tell you that to me this is real dangerous I would not even give this idea the time of day

If you want to build a spot welder I can give you some very good idea on how to do this

I...
Forum: General Electronics Technical Discussion 01-27-2019, 06:38 AM
Replies: 5
Views: 163
Posted By sam_sam_sam
Re: Real or Fake video?

I have to agree with you I also think that most of them are fake
Forum: General Electronics Technical Discussion 01-27-2019, 06:09 AM
Replies: 6
Cof
Views: 178
Posted By sam_sam_sam
Re: Cof

What in a freezer ?
Forum: General Electronics Technical Discussion 01-27-2019, 06:07 AM
Replies: 6
Cof
Views: 178
Posted By sam_sam_sam
Re: Cof

This is what I am talking about

One note about these modules do not work very well and are not very reliable you hook your phone it might recognize one time the next time it will not recognize...
Forum: General Electronics Technical Discussion 01-26-2019, 01:54 PM
Replies: 6
Cof
Views: 178
Posted By sam_sam_sam
Re: Cof

I have bought some one time before and will never buy this again for the following reasons

The plastic that was used was very easily torn

Very hard to clean the solder traces so can try to...
Forum: Troubleshooting Power Supplies and Power Supply Design 01-26-2019, 09:12 AM
Replies: 57
Views: 733
Posted By sam_sam_sam
Re: "easy" PSU repair

When you are doing these voltage measurements where are your meter lead at
Forum: Troubleshooting Game Consoles & Other Weird Devices 01-24-2019, 07:34 PM
Replies: 49
Views: 777
Posted By sam_sam_sam
Re: Speed controller for golf trolley

Can you post a picture of both sides of the controller board and the motor
Forum: Troubleshooting Power Supplies and Power Supply Design 01-24-2019, 07:29 PM
Replies: 6
Views: 214
Posted By sam_sam_sam
Re: Dimension Schematic Reading

Thanks for sharing this
Forum: General Electronics Technical Discussion 01-22-2019, 04:16 PM
Replies: 27
Views: 368
Posted By sam_sam_sam
Re: What do you think about this meter Feedback need

In other words it would show you that you one or more diodes failing which would be very helpful determining if that was causing your battery to drain over night

But in general the output of an...
Showing results 1 to 25 of 500

 
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