Found in a Motorola documentation from the 70s, this circuit makes use of transistors of the time. Modern equivalents can be used. The diode also supports an equivalent.
Based on the well-known LM3914, this circuit has a transistorized and inverters stage, triggering...
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
The circuit presented is from an old magazine having been translated and published in a national...