Engadget

How-To Build a Telephone Recording Circuit from an Old Modem

We started out with an old modem and ended up with a useful circuit to convert phone audio to regular line audio. This little hack is useful for those of us wanting to record Voip telephone calls for ...
Electronic Design

Analog Circuit Design, Volume Three

Elsevier has announced the publication of Analog Circuit Design Volume Three: Design Note Collection, the next book in the Analog Circuit Design series, edited by Bob Dobkin and John Hamburger.
EDN

Inside the analog modulator – Part 5 of an introduction to analog circuit design

At the heart of the control scheme of a classic switching regulator is the analog modulator, of which one typical implementation is shown in Figure 21. The analog modulator is essentially a comparator ...
JSTOR Daily

Using Laboratory Experiments and Circuit Simulation IT Tools in an Undergraduate Course in Analog Electronics

This is a preview. Log in through your library . Abstract Laboratory-based courses play a significant role in engineering education. Given the role of electronics in engineering and technology, ...
Hackaday

How-To Build A Telephone Recording Circuit From An Old Modem

We’ve posted our How-To for the week over at Engadget. Do you have an old modem lying around? Have you been dying to record some of your phone conversations for those podcasts or homebrewed movies or ...