Choosing between two widely available, multisourced ICs for the core of an inductorless dc-dc converter—the NE555 timer and the LM386 audio amplifier—requires a look at their ...

Strangely enough, this lamp-stabilized LM386 Wien bridge oscillator is one place where an incandescent bulb makes an appearance.

He’s a big fan of the LM386 amplifier chip because it does so much in such a small package. Since it is so versatile, he used it as the centerpiece of his Altoids tin amplifier.