This circuit was found in Signalite documentation from the 1960s. The circuit uses a pulse transformer whose characteristics have not been provided.
Based on the well-known LM3914, this circuit has a transistorized and inverters stage, triggering...
This circuit is from a Texas Instruments manual from 1968 but can be applied to current controls...
We found this oscillator in an English documentation from 1977. The symmetrical supply, in fact,...