Suggested by Philips in 1966 documentation, this limiter can be found elsewhere on this website. The circuit is for 7 V, but can be changed to other voltages, depending on the zener diodes.
In the figure we have a simple signal tracer circuit to be coupled to the volume control of an AM...
This circuit was found in documentation from the 90s, using components from that time. The...
This circuit, obtained from old documentation, allows the recovery of sulfated batteries. The...