Reading an article about the first transistorized Hi-Fi amplifier, [Netzener] got the ... He also made some improvements to the push-pull bias circuit and limited the high-frequency response.

His plasma speaker does do the job well though, and in particular he’s put a lot of thought into the design of its drive circuit. At its heart is the ubiquitous TL494 PWM controller that you may ...

Damaged bass speaker and amplifier, once covered in dust and wear, are about to make a powerful comeback. Every component is carefully repaired, from blown-out speakers to faulty wiring ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Suppose you want a hi-fi system but are daunted by the prospect of multiple speaker and amplifier ...