1-cycle-per-30-day oscillator (CB26073E)

This extremely slow circuit produces one pulse per month and can be used in a timer. We found it in the November 1998 Electronics Now magazine.

| Clique na imagem para ampliar |

20 V Power Supply (CB24082E)
This 20 V power supply is indicated for the previous circuit and has a current of around 200 mA...
Variable Frequency Crystal Oscillator (CB12256E)
Frequencies from 1 to 10 MHz can be obtained with a small adjustment of the variable in a narrow...
Neon light (CB6871E)
This is the traditional version of a neon flasher, found in a 2004 documentation. The capacitor...