<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)">At Tacos today there was interest in the automated transistor/inductor/capacitor/resistor tester I found on eBay. This unit automatically identifies the type of component under test and graphically displays the pinout of the device. In just a few minutes I was able to identify and check dozens of transistors that have been in my junk drawer for years.</div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)">On eBay, a search for "LCR transistor tester" turns up about 120 similar items. Almost all are $20 or less including shipment from Asia. The specific unit I bought came from <a href="http://stores.ebay.com/elecbuy?_trksid=p2047675.l2563">elecbuy</a> from China for $20, It arrived 14 days after placing the order:</div><div class="gmail_default" style><font color="#000000" face="tahoma, sans-serif"><a href="http://www.ebay.com/itm/321404670717?_trksid=p2060778.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT">http://www.ebay.com/itm/321404670717?_trksid=p2060778.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT</a></font><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)">The units are based on a design by Markus Frejek. I found very wordy documentation in machine-translated English but the website now comes up as malicious. If anyone is interested I can send it to you.</div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)">Amazingly, the actual measurement circuit uses only 6 resistors and an ATmega328 controller, the same type as used in the Arduino. There are many more parts used for the power supply and auto-off circuit.</div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)">Video review: <a href="https://www.youtube.com/watch?v=gx55Gza0zGE">https://www.youtube.com/watch?v=gx55Gza0zGE</a></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)">For more reviews search <a href="http://youtube.com">youtube.com</a> for "fish8840".</div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)">Accuracy data:</div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)"><a href="http://lygte-info.dk/review/ComponentTester%20Fish8840%20UK.html">http://lygte-info.dk/review/ComponentTester%20Fish8840%20UK.html</a><br></div><div class="gmail_default" style><font color="#000000" face="tahoma, sans-serif"><br></font></div><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(0,0,0)"><br></div><div><div class="gmail_signature"><div dir="ltr"><font face="courier new, monospace" color="#0000ff"><b>73 Karl W4KRL</b></font></div></div></div>
</div>