This circuit is an alternative to the previous circuit. We found it in the same article in the Radio Electronics magazine of March 1992. The integrated circuits are the LM3914.
A phase shift oscillator can be built with just one operational amplifier, as shown in the figure. It...
We found this circuit in a 2006 publication. The circuit is simple, being powered by a 9 V...
The integrated circuit used in this configuration is equivalent to the common 555, but double. The...