We found this circuit in the Linear Applications Handbook of the 1994 National Semiconductor. The transistor must be a high voltage type and the LM3900 power supply must be symmetrical.
This oscillator for the fifth overtone of a crystal was found in a Radio Electronics magazine from...
Found in an American publication from the 1970s, this circuit makes use of unusual components...
This circuit was found in the September 1984 issue of Radio Electronics magazine. The frequency is given...