This is the simplest Sub woofer Low Pass filter Circuit using uA741 single op amp ic. The circuit is very low cost with respect to their work. The cut off frequency of this circuit is 25Hz to 80Hz ...

Ever since Robert Widlar designed the µA702 in 1963, the first monolithic op-amp IC from Fairchild Semiconductor (followed by the venerable µA709 in 1965), IC op amps have largely kept pace with ...

A similar version of this article appeared in the May 5, 2010 issue of Electronic Design magazine. As portable battery-operated devices continue to shrink in size while adding functionality, their PCB ...

What if a palm-sized amp could outperform larger, more expensive modules while delivering serious sound quality? Check out ...

The operational amplifier, or op amp, is one of the most basic building blocks used in analog circuits. Ever since single-chip op amps were introduced in the 1960s, thousands of different types have ...

The very basics of operational amplifiers. Learn comparator, inverting, and non-inverting op-amp configurations. An operational amplifier, or op amp, is a dc-coupled high-gain electronic voltage ...

In the world of audiophilia there are arguments that rage over the relative merits of particular components. Sometimes this can reach silly levels as in the high-end ALPS pot we once saw chosen as a ...