This crowbar protection circuit for non-regulators blows the fuse when the load voltage exceeds a certain value. The configuration with component values can be seen in the previous circuit.
This circuit triggers the LED when the monitored battery voltage drops below 9 V for 12 V...
We found this circuit in a Radio Electronics from January 1967. The SCR is already the C106, which...
This power source with silicon diodes at a time when valves were still used was found in Radio...