This circuit with a differential pair was found in the August 1974 Radio Electronics magazine. The frequency is determined by L1 and the variable capacitor.
In this circuit we have the way to use common diodes to obtain low regulated voltages in a single...
This circuit is from a 2005 Linear Technology manual. The circuit uses an LT6700-3 and has an...
The crystal frequency of this circuit found in an American documentation is limited only by the...