Building the Largest 741 OpAmp in the World with Vacuum Tubes (Plus 555 Timer Update)
Published at : 23 Dec 2025
The 555 timer is one of the most popular chips in the World, but hot on its heels is the 741 Operational Amplifier. In this episode we take a look at the state of the 555 timer kit and, since we’re waiting on parts, take a stab at building a 741 Operational Amplifier!