electronic component tester

Bought this little EZM328 kit on Ebay


DIY KTIS EZM328 transistor tester/ ESR / frequency meter / square wave genera KY | eBay

For less than $13 shipped (included 128X64 display is worth more),I have to tell you its more than cool for us ET wannabes. It tests all kinds of components and is an easy build or for like a buck more, can be had fully assembled. I recommend getting the plexiglass case for it too for a few bucks more as it is just a bare board and a battery lead out of the box. 1 hour build with a soldering iron. It really is amazing. It even is a frequency generator for whatever that is used for. Maybe an ignition stimulator? Youll need this schematic as its NOT INCLUDED in the kit! "Uh, where do all these pieces go?" I had to email them and ask WTH but there were very fast to send me link, like 20 minutes. Put it together, powered it up and found some random resistors and capacitors to test and it nailed them all, found out that one of my caps was way out of spec. trash time. So if your into this stuff, this is a BUY recommendation. Lots on the market, I recommend this one as it comes with the cool little leads, but get a case too.

Need a case?

Do you have one or make them?

I'm electrically stupid. What all will it test?

It can test capacitors, resistors, coils, transistors, jusy about anything on a through mount circuit boardm it will tell you the true capacitance of a capacitor, not what's labeled on the can. Many times capacitors will go bad, short or open and that can cause the power circuit of the device to not power on or malfunction. They are pennies to buy and simple to replace, it's just testing them that's a pain without a 50 buck esr meter. This guy test all kinds of small components and is smart enough to identify the part, tell you what it is and even the values. And you can attach them however you want, it's not dependent on where the leads clip onto, all with ONE test button.. Pretty cool. And it's super cheap. I bought a 50 inch tv for 30 bucks because it didn't power on, it was 3 .20 cent capacitors that were bad. Replaced and am watching it to this day.

I didn't see where to purchase it assembled or the plastic case. Sorry, I'm I overlooking something

here is one with case assembled, just screw case together. but look around, they are all over Ebay
2017 Transistor Tester TFT Diode Triode Capacitance Meter LCR ESR MOSFET + Case | eBay

necropost: I broke this out to play with my oscilloscope to see if I could get some wave forms up. After looking forever for some instructions on how to do this, I figured it out. There is a 2 pin socket at the top right under the display. The top pin is GND, the bottom pin is the frequency measuring input. So if you tie that bottom pin to the probe test point of an O-scope, youll get a 1KHz reading on EZM328 frequency counter as that is what's output on the probe test point, perfect! solder on a BNC and you got a probe socket. The Frequency Generator function allows you to generate a 52v peak to peak frequency that is output on pin 2 of 3 pin test port, or position 2/pad 2 of ZIF/test pad, and the ground point of top pin GND (or pin3/pad3/socket3).. Hey, it works! It will even do a variable PWM pulse using same pin 2+pin3(GND) hookup. Pretty cool for a $12 kit. The newer kits have a color display.

instructions here for most models
http://www.n5dux.com/ham/files/pdf/M12864 Transistor Tester Instructions.pdf

THanks Pishta!!! Just ordered one!!

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