[MRCA] Technoweenie Stocking Stuffer

[B. Smith]

A caution - any of the new  component testers will not tolerate a large 
value capacitor that has not been fully _discharged_ as they are 
sensitive to voltage.  I personally would never measure  a large value 
cap in one of these units. An example of a  large value capacitor is a 
cap that is in the uF range for instance a 10 uF cap that would be used 
in a power supply filter.
But for $15 bucks I guess we can take a chance. :-)

These devices really come in handy when winding coils and you have a 
target inductance in mind much easier that using a impedance bridge. 
Just wind and measure then add or reduce turns.

Z

On 12/18/2015 9:47 AM, Clare Owens wrote:
> So, since I always have eBay open in my browser I just went ahead and 
> ordered two, gotta have one for my son Bill.
>
> Thanks for the heads-up.
>
> Clare
>
> On Thu, Dec 17, 2015 at 3:36 PM, Al Klase <ark at ar88.net 
> <mailto:ark at ar88.net>> wrote:
>
>     Gang,
>
>     I just took delivery of this component tester.
>
>
>     You don't even have to know what component.  Just stick something
>     in the zero-insertion-force socket, push the button, and the tin
>     brain inside figures it out.  Does resistors, capacitors,
>     inductors, diodes, and bipolar and FET transistors.
>
>     The best part:  It's 15 bucks shipped from Duluth, GA. -
>     http://www.ebay.com/itm/221961865013?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
>
>     There are a bunch of these floating around on E-bay, but this
>     appears to be the latest revision, with a really nice display and
>     rugged battery holder.  You'll likely want to install in in some
>     sort of box to carry around.
>
>     All this is made possible by a modern microcontroller that has
>     analog inputs and outputs built in, so it can make the appropriate
>     measurements.
>     uC data sheet here: ATmega48A, ATmega48PA, ATmega88A, ATmega88PA,
>     ATmega168A, ATmega1688PA, ATmega328, ATmega328P datasheet -
>     atmel-8271-8-bit-avr-microcontroller-atmega48a-48pa-88a-88pa-168a-168pa-328-328p_datasheet_complete.pdf
>     <http://www.atmel.com/images/atmel-8271-8-bit-avr-microcontroller-atmega48a-48pa-88a-88pa-168a-168pa-328-328p_datasheet_complete.pdf>
>
>     Not much on the circuit board except the processor and an 8MHz
>     crystal.  Everything else in SMOP. (Simply a Matter Of
>     Programming)  Welcome to the 21st Century!
>
>     My apologies for the freak out,
>     Al
>
>     -- 
>     Al Klase – N3FRQ
>     Jersey City, NJ
>     http://www.skywaves.ar88.net/
>
>
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