This circuit uses three inverters to generate a rectangular signal whose frequency depends on R1 and C1. The circuit is from a March 1996 Electronics Now.
We found this circuit in a 1979 Poptronics. The circuit can be easily assembled with the use of...
Unlike the previous circuit this one trigger when the temperature drops below the set value. The...
A very interesting integrated circuit for step-down converter designs (voltage reducers) with an...