I did a big cleanup of my collection of parts today and I now have a big pile of parts on my desk (the majority of which is resistors). My previous method of finding the resistor v …

Hi, I am playing around with a few projects and looking at a few more online. I've had to make some trips to the local electronics shop for a few basic necessities like LEDs, resi …

What are the scenarios where Triacs can not replace a relay or vice-versa?

I am thinking about ordering up some parts for every day use. I am thinking about making one big purchase so as to minimize on shipping and other charges. What are some of the co …

I am trying to find long-lasting items -- to buy in bulk. The idea is to order them for a lifetime. What are long-lasting electronic items? Which items are good idea to stock? I h …

I have a +5V power supply and need to invert to a -5V supply sourcing about 25mA. I've got an LMC7660 running now. It's ok for the short term, it outputs -4.4V with 100mV p-p switc …

Can anyone suggest a 330uH inductor and associated Eagle .lbr for use with an LM2575? I've been looking all day for this! Any suggestions would be appreciated.

Can someone suggest a source and part number for insulated, stranded small-gauge wire (around 22AWG) that is flexible and doesn't hold its shape? Something along the lines of the …