PLL (CB7971E)

This common operational PLL circuit was found in a Popular Electronics 90’s. The power supply need not be symmetrical.

1.2 V to 17 V with 1.5 A (CB17558E)
This is the traditional configuration of the LM317 that appears in applications and other circuits on...
28V Shunt Regulator (CB8806E)
This configuration can be found elsewhere in this section. This was obtained from old RCA...
Clef Generator (CB827E)
This circuit produces a clef sound when a pulse is applied to its input. The damping effect is...