This circuit was published in an article in Electronics Now magazine in October 1995. The circuit includes a power supply. The power transistors are equivalent.
This circuit is from an old documentation. However, it can be designed based on modern transistors...
I found this circuit in a Popular Electronics from 1992. The circuit shows how we can modulate a lamp...
This circuit needs only 0.7 V at 40 uA to drive the relay. We found it in the November 1993...