Tag: 741

Light / Dark Sensitive Switch project is a simple project which operates a relay when the light falling on the LDR goes below or goes above a set point. Input - 12 V @ 50 mA Relay output - SPDT relay 2-in-1 kit, either as light sensitive kit or dark sensitive switch Onboard...

Ken Shirriff's blog looks inside the famous 741 OPMAP and discuss how it's made and how it's working: The 741 op amp is one of the most famous and popular ICs[1] with hundreds of millions sold since its invention in 1968 by famous IC designer Dave Fullagar. In this article, I look at...