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.
I found this circuit in a Popular Electronics from November 1999. The magazine is no longer...
This oscillator with operational and CMOS buffers generates complementary signals. The circuit is...
This circuit was obtained from an American 80's documentation. The operational ones can be...