This circuit generates pulses whose frequency depends on C1. The circuit can be powered by voltages from 5 to 15 V. We find this configuration in a Signetics manual.
Using a 4046 PLL this circuit generates rectangular signals in three wavebands that depend on the...
The circuit shown is from the 1994 Linear Applications Handbook by National Semiconductor. The...
With this circuit it is possible to control two LEDs of different colors, making their color...