Add in other silicon stalwarts like the 741 op-amp and the LM386 audio amp, and you’ve got a Hall of Fame lineup for almost any project. That’s exactly the complement of chips that powers this ...

The design uses split rails – a negative voltage, a positive voltage, and ground, with the first prototype power supply made from a 741 Op-amp. From there, it was just breadboarding stuff and ...

There is also an optional active-filter application at the end. Breadboard, dual-trace oscilloscope with two attenuatingprobes, two 741 and one LF411 op amp, 311 comparator, 555 timer, one 100 ?, one ...

There are some commercially available multiplier ICs and multiplier circuits can be constructed from op-amp ICs such as 741. The applications of multipliers include frequency doubling, frequency ...