This circuit is suggested by Texas Instruments in old documentation. The components depend on the desired characteristics for the circuit. The power supply must be symmetrical.
August 2016 - It can be obtained from Mouser Electronics Mikromidia of the MikroElektronika...
Found in American documentation from the 90s, this circuit provides three timings given by the...
Found in a manual of integrated circuits from the 90s, this circuit makes use of that time...