When it was first introduced in 1968, Fairchild’s 741 op-amp made quite a splash. And with good reason; it packed a bunch of components into a compact package, and the applications for it wer… ...

The 741 op-amp IC, priced under $1, came to market in 1968, moving the device from novelty to the mainstream of design. See Fig. 1 for the functional diagram of the 741. Focusing on just linear ...

Some of you may remember a recent project that featured on these pages, a 555 timer reproduced using vacuum tubes. Its creator [Usagi Electric] was left at loose ends while waiting for a fresh PCB … ...

Move Beyond Active Filter Design Mythology To Improve Your Discrete Op-Amp-Based Designs Aug. 27, 2010 Michael Steffes challenges conventional approaches to Sallen Key Filter design.

The 741 was the first two stage, internally compensated, high-gain, low-cost, op amp. “I thought up the idea of internal compensation to avoid the instability seen in the 709,” said Fullagar. “The ...