Blocking Oscillator (CB25313E)

We found this circuit in Electronics Now magazine from 1996. The frequency is basically given by L1, being around 1 MHz for the indicated inductance.

Delayed Alarm Trigger (CB4775E)
This circuit is designed to activate an automotive alarm after 8 minutes of activation. Of course...
Reinartz Oscillator (CB25318E)
The coils determine the frequency of this oscillator that we found in the January 1996 issue of...
Simple Timer Using the 555 (MSB123E)
This simple timer can be used in many applications such as egg timer. The LED glows up when S1 is...