In fact, this 1967 Electronic Design circuit generates two symmetrical ramps whose frequency depends on the values of the components used. Modern equivalent transistors can be used.
This small transmitter appeared in the March 1989 issue of Radio Electronics magazine. The...
Based on a 555, this 80's American documentation circuit detects the voltage of a battery and can then...
This 16-bit circuit was found in a 2005 Linear Technology application manual. The circuit uses...