In circuits 1, 2, and 3, the LM386 inputs are connected directly across the tank circuit and use the LM386 as an RF envelope detector. Circuit 4, with its relatively large value coupling capacitor, ...

A regular Hack A Day reader sent in a tip about an LM386 stero amplifier with digital volume control.The resulting build is very professional and could easily be adapted into a slick iPod dock build.

The AVC circuit works this way: the FET (t1) is used as a variable resistor. The resistance between the drain and source of T1 can be between 150Ω and infinite. It is parallel resistor to R2 and ...

I built a QRP CW ham radio RX using a stereotypical LM386 headphone amp and I installed a socket (beware, this is a great way to make an oscillator) and compared my stock of 80s to 90s era ‘386 ...

M-eVOL2 volume control circuit using MDACs (operating in a current steering R-2R configuration) which alter the audio signal's amplitude, yielding no sonic degradation of ...

The bipolar NE555 timer IC is widely used in inductorless dc-dc converters, most frequently in doubling and inverting converters. However, another very popular IC, the LM386 audio ...