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Search: Posts Made By: Kiriakos GR
Forum: General Electronics Technical Discussion 07-24-2014, 02:57 PM
Replies: 41
Views: 21,512
Posted By Kiriakos GR
Re: Using an ESR Meter (and Reference Chart)

You will discover what I am saying when you will start your new job.
For me Internet use is the same as real life, some door you can cross them only if you complying enough.
Forum: General Electronics Technical Discussion 07-24-2014, 12:30 PM
Replies: 41
Views: 21,512
Posted By Kiriakos GR
Re: Using an ESR Meter (and Reference Chart)

Electronics circuit design and rules to follow when doing it, is a subject above your class.
Forum: General Electronics Technical Discussion 07-24-2014, 12:14 PM
Replies: 61
Views: 4,340
Posted By Kiriakos GR
Re: help with a APC ups mod

I believe that this is an protection in case that batteries charger is facing a short circuit.
It supposed that the inrush current in such an event will be enormous.
Forum: General Electronics Technical Discussion 07-24-2014, 06:03 AM
Replies: 61
Views: 4,340
Posted By Kiriakos GR
Re: help with a APC ups mod

Are you talking about some colored ones ( car Fuse type) ?
Forum: General Electronics Technical Discussion 07-24-2014, 05:57 AM
Replies: 41
Views: 21,512
Posted By Kiriakos GR
Re: Using an ESR Meter (and Reference Chart)

Add in the list also equipment as TV set and all sound equipment as mixers, equalizers, preamplifier s, compressors / limiters, and even condenser microphones for studio.
Forum: General Electronics Technical Discussion 07-24-2014, 05:52 AM
Replies: 41
Views: 21,512
Posted By Kiriakos GR
Re: Using an ESR Meter (and Reference Chart)

The demonstration of Denial in making savings and in a way a small sacrifice so to get a worthy tool, is not an indication of acting wise.

In a forum there is confused souls and people in need to...
Forum: General Electronics Technical Discussion 07-23-2014, 08:37 PM
Replies: 41
Views: 21,512
Posted By Kiriakos GR
Re: Using an ESR Meter (and Reference Chart)

Why do you care of where I will be send?

Just continue eating your hamburgers and ice creams and keep crying due internet that your wallet is full of holes.
Forum: General Electronics Technical Discussion 07-23-2014, 06:24 PM
Replies: 41
Views: 21,512
Posted By Kiriakos GR
Re: Using an ESR Meter (and Reference Chart)

With out an true LCR meter at hand you may not even build an stereo amplifier that both channels will have the same volume output or frequencies response.

Or even confirm that the capacitors...
Forum: General Electronics Technical Discussion 07-23-2014, 02:33 PM
Replies: 61
Views: 4,340
Posted By Kiriakos GR
Re: help with a APC ups mod

I do not wish to discourage you, but is far complex to modify it than repairing the blown inverter.
Forum: General Electronics Technical Discussion 07-23-2014, 02:28 PM
Replies: 41
Views: 21,512
Posted By Kiriakos GR
Re: Using an ESR Meter (and Reference Chart)

And I will add that all these measurements they require a meter with four digits display resolution, and accurate milliohm measurement with Kelvin type test leads.

Therefore cheap ESR meters are...
Forum: General Electronics Technical Discussion 07-23-2014, 02:20 PM
Replies: 41
Views: 21,512
Posted By Kiriakos GR
Re: Using an ESR Meter (and Reference Chart)

Freeze it with spray and measure it capacity again.
If the capacitor is half dead, it will be shown.
Forum: General Computer Discussion 07-23-2014, 02:12 PM
Replies: 45
Views: 7,477
Posted By Kiriakos GR
Re: Back-UPS RS 800 Not charging

All APC UPS always need fresh working batteries so the device to pass it self test (at boot up), and then it starts charging them.

Simple as that.
Forum: General Electronics Technical Discussion 07-23-2014, 02:03 PM
Replies: 61
Views: 4,340
Posted By Kiriakos GR
Re: help with a APC ups mod

Its like seeking for trouble.
All the job regarding charging is made automatically by it electronic controller (main chip).
What makes you think that this one survived from been blown too ?
Forum: General Electronics Technical Discussion 07-21-2014, 01:44 PM
Replies: 7
Views: 1,451
Posted By Kiriakos GR
Re: Help with component suitability in PLL Transmitter

The use of parts with better specifications in basic applications seems as waste to me, but if works best for you.. then use them.

Regarding the schematic, the picture is not that great for...
Forum: General Electronics Technical Discussion 07-20-2014, 12:03 PM
Replies: 7
Views: 1,451
Posted By Kiriakos GR
Re: Help with component suitability in PLL Transmitter

There is no need for Low-ESR capacitors on a 4W PLL transmitter.
You will use regular parts, and you will use a transformer based PSU for it, so to avoid a pulsing power supply and all it...
Forum: General Computer Discussion 07-20-2014, 11:52 AM
Replies: 25
Views: 3,578
Posted By Kiriakos GR
Re: PC cleanner for free?

I will just pass again my recommendation about Advanced SystemCare 7.
After using it for a year as free, I did pay the yearly fee so to get it.

It does not damage windows registry and it gold...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-12-2014, 09:10 AM
Replies: 13
Views: 2,622
Posted By Kiriakos GR
Re: AC Voltage Stabilization

Plenty of ideas if you do not afraid complexity.

http://www.ittsb.eu/forum/index.php?topic=876.0
Forum: Equipment Usage, Soldering, Techniques, and Reviews 07-11-2014, 03:40 PM
Replies: 20
Views: 4,913
Posted By Kiriakos GR
Re: My first Scope!

In this case some one other than you will benefit from my answer.
Forum: Equipment Usage, Soldering, Techniques, and Reviews 07-11-2014, 05:59 AM
Replies: 20
Views: 4,913
Posted By Kiriakos GR
Re: My first Scope!

It is true that when shopping for an Oscilloscope it is hard to predict the ultimate bandwidth that you will even need.

But if you watch the bandwidth specifications of active Oscilloscope...
Forum: General Electronics Technical Discussion 07-11-2014, 05:40 AM
Replies: 32
Views: 4,035
Posted By Kiriakos GR
Re: Cheap ESR meters on fleaBay, what do you think?

I will say to all that is definably a requirement when you are following the correct pattern about conducting capacitors testing.

Capacitors datasheets are the ones which setting the requirements...
Forum: General Electronics Technical Discussion 07-10-2014, 04:00 PM
Replies: 15
Views: 2,079
Posted By Kiriakos GR
Re: ESR meter from Ebay

From time to time I have to focus all my energy in to specific targets for getting maximum results.
Generally speaking I am in Top shape. ;)
Forum: General Electronics Technical Discussion 07-10-2014, 08:14 AM
Replies: 15
Views: 2,079
Posted By Kiriakos GR
Re: ESR meter from Ebay

It would cost you cheaper buying a new PSU than buying tools.
Forum: Equipment Usage, Soldering, Techniques, and Reviews 07-05-2014, 08:03 PM
Replies: 19
Views: 3,860
Posted By Kiriakos GR
Re: Soldering station idle temp

Yes the smart ones.



I bet that you are using home made Solar Energy.


Instead of explaining how a modern soldering station behaves regarding fast heating in just 8 seconds .. programed...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-10-2014, 05:00 PM
Replies: 4
Views: 1,005
Posted By Kiriakos GR
Re: DIY Your Own Ammeter

No one would pay for a professional power supply if the current limiter functionality was not that significantly important.
Forum: Equipment Usage, Soldering, Techniques, and Reviews 04-10-2014, 04:53 PM
Replies: 20
Views: 4,814
Posted By Kiriakos GR
Re: A history of oscilloscope development in Vilnius

In my side of the pond, older scopes of Hameg are still dominant ones for vintage audio.
But about getting spare parts for them gets harder and harder those days.

The modern scopes in 2013 -...
Showing results 1 to 25 of 500

 
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