Solar flashlight (CB20488E)

This circuit charges a battery to power a flashlight at night. The circuit is from an English publication from 1991.

Monostable Using the 4047 (I) (CB134E)
The 4047 is a monostable/astable CMOS multivibrator. The basic con- figuration is triggered by the...
Monostable with comparator (CB5430E)
In the figure we have the way to implement a monostable with a comparator 139, 239 or 339. The...
5A Regulator (CB2179E)
This circuit was found in an Electronics Now from the 90's. The integrated regulator circuit and...