Make a portable audio simple amplifier. Homemade amplifier for speakers ...

The debate still goes on as to which are better, valves or transistors. We don’t intend to get involved in that argument here. But if you can’t make your mind up, you should try out this simple ...

In Seemingly Simple Circuits: Transresistance Amplifier, Part 1– Approximating Op-Amps, the op-amp was approximated from a single-pole, finite gain amplifier to an infinite-gain, single-pole op-amp, ...

If you think most components are too complicated and just want great sound, the no-frills Cambridge AXA35 integrated amplifier is exactly what you’re looking for. Ex-movie theater projectionist Steve ...

Learn how to build a DIY beer can TV antenna that captures digital and analog channels even from distant towers, enhance its range with a simple amplifier, and compare its performance with factory ...

Andy recommends favorite resources for basic op amp circuits and includes a portion of TI's AN-20. Test your knowledge with our op amp quiz; answer explanations are included. By 1969, a fledgling ...

Sometimes I wish FETs had become practical before bipolar transistors. A FET is a lot more like a tube and amplifies voltages. Bipolar transistors amplify current and that makes them a bit harder to ...

In a signal-conditioning op-amp application, is there an optimum circuit topology for optimizing SNR and SFDR? Here’s a succinct analysis, part mathematical, part simulation, and part cookbook, from ...

I've noticed that my 2 year old daughter has an unhealthy interest in my current, old Denon amplifier from the beforetime that has lots of buttons and lights. I've also noticed that my audio input ...

I'm looking for a simple A/V receiver/amplifier. All I want is HDMI 1.3/1.4 multichannel audio support. And smallness. My setup uses an external video scaler/HDMI switch, so all I need the amplifier ...