This crystal oscillator generates a 20 MHz signal. Equivalent transistors such as BF494 and 2N2222 can be used. The stabilizing diodes can be 1N4148.
Found in Burr Brown documentation from the 90s, this circuit applies to several operational ones....
This circuit is from a cookbook to timers. The circuit is triggered by an external signal and,...
We found this circuit in Texas Instruments' Linear Circuits Applications. It is a low consumption peak...