The fundamental component of any analogue computer is the operational amplifier, or op amp. An operational amplifier (often called an op-amp,) is a high...

We have had the Wiki with us for a long time now, but at last I have decided to say bye bye – more details on why below.

In an earlier note on the site [Photovoltaic (PV) - Electrical Calculations], the theory of solar (PV) cell calculations was introduced.  In particular...

This post is quick introduction and overview to different railway electrification voltages used in answer to a question sent in via email. While there...

If you want to check a circuit is dead (not live), you should always use the three point method. First check a known live circuit, then check the dead...

How often installations are inspected is up to the owner of the installation, provided such durations do not exceed any regulatory maximums in force. ...

Some colleagues had an issue earlier in the week on sizing conduits to be cast in concrete for some power cables . It became clear that none of us had...

Electrical notes are a collaborative collection of electrical engineering information and educational material. Any registered user can add content. ...

This is the second post in a series of two on periodic electrical inspections. In the first post, I discussed how often inspections should be carried out...

A couple of months ago I came Microsoft's OneNote and downloaded the 60 day free trail. Since then I have been using it regularly and now have a full license...