Re: Yet another ESR meter!
2n2222 is nearly the same.
about the most common npn on the planet.
2n2222 is nearly the same.
about the most common npn on the planet.
-
-
Re: Yet another ESR meter!
The 3905 is a PNP, the 3903 has half the hfe of a 3904 looking at the datasheet.Comment
-
Re: Yet another ESR meter!
what is effect of that on the circuit though? seems to work okOriginally posted by tiggerific
apart from setting up the battery i am done
nice kit i enjoyed building it.
Attached FilesComment
-
-
Re: Yet another ESR meter!
So... is this the meter to have for basic system board and psu diagnosis?
I'm thinking an ESR meter should be added to my modest tools and growing skills. I haven't purchased one yet, but am willing to assemble a kit if it is the right tool for the job.Comment
-
Re: Yet another ESR meter!
is this the ESR meter to have? yes i believe so. the kit is rather good indeed and the case and construction should last for a good while. need variable power supply though or a few parts to build the small variable power circuit to set it up (not included).
review
http://www.capacitorlab.com/anatek-b...eter/index.htm
whether you need an esr meter? well thats another question. for pro work i think it is important because then you have the ability to eliminate the caps from any troubleshooting. especially important in quick fix solutions enabling to get it back running quickly and arrange for proper solution at leisure.
also its a good tool to learn what is going on, collecting data over time.
certainly i think you should get one. but should everyone get one....noComment
-
Re: Yet another ESR meter!
if you're engaged in changing caps, you should have esr meter, yeah....Comment
-
Re: Yet another ESR meter!
I read the reviews and ordered the Blue kit.
I never imagined I would be doing component-level repairs. If my Dad was still alive, he would be all about that. He always wanted to get me interested in Ham gear, but I was a musician instead.Comment
-
I read EBOOK of Testing Electronic Component and found that
"In order to test the small blue resin coated ceramic disk capacitor which has 104 50v specification,it is possible to test this small ceramic capacitor by making use of analogue meter.
Set to times 10Kohm that has 12v output from the probe to check disorder of ceramic capacitor.
It is not uncommon that testing result of digital capacitance meter is okay,But It show shorted reading when you check it with analogue meter."
Is it really possible to test small ceramic disc capacitor with analogue... -
I have had with regular AA batteries that leak this meter is expensive new I already replaced the battery battery clips once and the same thing happened again and I am tried of so it is getting modified to accommodate lithium ion batteries that are the same size excluding the positive terminal and removing the battery clips I will have enough room for the BMS protection board
I going to put 3 lithium ion battery in parallel with the BMS protection board and a way to charge the battery externally and heat shrink the battery pack and use a JST connector so I easily remove the battery... -
Hi
I want to change the scale of an analog meter, to monitor the charge of an li-ion single cell, so the needle at the end would point 4.2 volts and the 0 on the meter would point 2.5 volts or so, i tried to add diodes or a zener in series with the meter but the changes of the ambient temperature also changes the voltage value on the meter
I wonder how i can accomplish this so the meter would be precise at any temperature ?
Thnaks -
About a month ago we had a transformer jumper wire that burned in two different places between two transformers caused over $200 thousand dollars worth of damage to VFD drives at least 10 of them and a memory card and quite a few power supply as well
Now we have most of the equipment that got damaged back up and running except a feeder that has issues and we are waiting for some parts for
Now we also have another piece of equipment that was blowing fuses on the 110 volt controller switch circuit with the “E” stops and one switching power (24 volt) supply and a transformer... -
Greetings, new guy here but always interested in the crazy universe of modding
We just finished construction of around 25 vacation houses, all inside the same private area.
Each house has 3phase power , and we bought an atlas MK10 meter for each house (25 meters total ! )
The metering on a per-house basis is done privately. Its not done by a utility company. The utility company will only charge us for the total consumption of all 25 houses together.
Id like to do a small modification on the firmware of our MK10 to make it easier identify each house's...05-20-2025, 09:09 AM
Comment