This circuit, found in EDN documentation from the 90's, implements a clamp without signal deformation. The integrated circuit is from that time, uncommon nowadays.
Only incandescent lamp can be used in this circuit. The SCR must be mounted on a heatsink and...
This circuit originally appeared in a publication of 1997. With the changes, the circuit can be...
This circuit is from a 1969 Electronics World. The transistors may be modern general-purpose...