Switch Debouncer Circuits
Trying to trigger that 555 or that counter that you just finished and you find it's bouncing all over? Then you need
a very light and fast finger or a switch conditioner (debouncer) circuit. You have a choice of three digital types below, the IC's are CMOS
schmitt trigger with 5v trigger voltage.
You may not feel like using only one part of an IC , in this case you can use discrete components with transistors , they work almost as well .
DC to DC Converter
Two very usefull circuits , the coverted output will be two diodes voltage drop or 3 volts from the supply source .
Correction to Layout graphic of the positive to negative , the capacitor 100uF between D2 and ground should be reversed polarity