Solar flashlight (CB20488E)

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

AC Switch with Triac (CB25858E)
We found this circuit in an Electronics Now magazine from June 1995. The transformer has a primary...
Alarm Receiver (CB25210E)
This is the radio receiver for the previous infrared alarm radio transmitter. It contains the...
Very Low Frequency Generator (CB4925E)
By the components used this circuit of old English documentation can still be easily assembled. The...