This circuit makes use of a special LM195 power transistor not very easy to obtain. The circuit is from the 1994 Linear Applications Handbook by National Semiconductor.
This is the traditional configuration of the LM317 that appears in applications and other circuits on...
This configuration can be found elsewhere in this section. This was obtained from old RCA...
This circuit produces a clef sound when a pulse is applied to its input. The damping effect is...