Top ten simple circuits for DIYers

Mark Frauenfelder 5:14 pm Tue Dec 20, 2005

DIY Live presents a handy guide to the "Ten most needed circuits for the DIYer."

6. There is much need for a simple audio amplifier. There are many ways to do this, one is to use a darlington transistor like my 1-watt amplifier, and another way is to use an opamp like my post on the CMOY pocket amplifier, but the best way is to use an LM386 chip. The different gains can be changed by changing the resistor values. C5 filters out the DC, and C4 and R1 act as a low pass filter. Go to warplink.com for the values to use for the comonents.

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