I’m very happy seeing readers buying coffee for me. That really motivates me and this time the coffee was bought by Rick Jordan-Thanks! Here’s the message Rick sent to me: “I really enjoy your website and...

  What is logic probe? Logic probe is a test equipment designed to check on the TTL (transistor-transistor logic) and the  CMOS (complementary metal-oxide semiconductor) logic circuit or IC. Multimeter have the ability to test whether a logic voltage...

Building your own electronic project kit can truly help you to easily understand more about electronics. It trains you on how to read the electronic components codes, improve your soldering and desoldering skill,  how electronic components work, how...

  Metal Oxide Varistor (MOV) are voltage  dependent symmetrical resistors intended to protect equipment from transient voltages resulting from lightning strikes. This component is located near the ac supply input and before the bridge rectifier. The use of...

  I believe those who are in the electronic repair line had came across power supply that don’t produce enough output voltage. For example, the B+ line of a monitor suppose to deliver 50 vdc but it...

This is the first time i received a payment from a reader who read my blog. I have to say thanks to Donald Starnes from USA for buying me coffee through paypal. It’s great to received such a...

  What type of ic is this AP4411 used in the inverter section of HP f1703 LCD Monitor? At current moment it is hard to find such datasheet or specification for this 4411 IC. It is actually...

  My favorite solder gun is the HAKKO PRESTO 981 solder gun that have the features of two operating wattages – 20W and 130W, which can be switched by simply pressing a button according to the component size...