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Old 5th March 2015, 07:44 PM   #1
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Default Mega328 Tester

At the price of $22, I know it cant be that accurate, but how many of you all use it?

Looks like a fun toy to test good or bad components. And seems to beat the source to drain fight with transistors.

Worth the few bucks to test caps and transistors?

Is there a preference to different models?

http://www.amazon.com/SainSmart-Mega...nsistor+tester

Last edited by jakelm1975; 5th March 2015 at 07:48 PM.
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Old 5th March 2015, 07:54 PM   #2
CoM is offline CoM  Canada
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Look on eBay too. It's under $15 US:
MEGA328 Transistor Tester ESR Meter Digital LED Diode Triode Capacitance MOS PNP | eBay
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Old 5th March 2015, 07:58 PM   #3
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Originally Posted by CoM View Post
I know, they do get pretty cheap. But Im learning there are different models/versions.

Was just curious if you all had a preference.
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Old 5th March 2015, 08:09 PM   #4
CoM is offline CoM  Canada
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At under $15 there isn't much that you can regret.
Probably not extremely accurate but decent and going from nothing to this is a lot.
I say go for it. It's the best way to learn what you need without paying an arm and a leg (especially if something goes wrong and things heat up).
Of course I would like to have a Fluke or something with a well known name on it but then it will definitely cost more than a pack of 6 .
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Old 5th March 2015, 08:23 PM   #5
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For reference, here the link to the origin of theses testers:

Transistortester AVR - Mikrocontroller.net
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Old 6th March 2015, 03:17 PM   #6
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Quote:
Originally Posted by andreastt View Post
For reference, here the link to the origin of theses testers:

Transistortester AVR - Mikrocontroller.net
http://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/

Here's a big thread at EEVBlog discussing these testers including the one listed by the OP. The authors of the firmware post in from time to time, discuss the various branches of the firmware etc.

They quality varies a bit on these but they are decently competent. For an LCR, if you can swing for the under-$100 price point, there is a much higher value accuracy meter (Der EE DE-5000 which IET labs rebrands as their DE-5000 and DE-6000) but for around $20 this is about as good as you can expect to get.
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