Found in Philips' 90s documentation, this small source can use modern transistors like the BD135 for TR4 and the BC series for the rest.
November 2016 - The On Semiconductor Reference Development Kit and WDK1.0GEVK Reference Kit can...
We find this circuit in an American 80's documentation. No further information about the...
The circuit shown in the figure is in fact an excellent symmetrical switching source capable of...