This circuit is one of many that the reader can find in this section for testing crystals. The circuit uses an indicator LED. Transistor Q1 determines the maximum crystal frequency that can be tested.
Found in a 90s General Electric documentation, this circuit has a drain current of just 1.5 uA....
Maxim is presenting an interesting intelligent force sensor for applications ininterfaces,...
This circuit was found in a 2005 Linear Technology manual. The circuit monitors 12 V batteries in...