This circuit is one of many of its kind that can be found on this site. This one is from a September 1987 Radio Electronics. The triac must be controlled according to the load.
This charger can be used with one to four AA, AAA, C or D cells. The maximum current is given by R...
Using an RCA CA3035 integrated circuit, this turntable circuit was found in the February 1970...
This circuit uses an unusual Motorola voltage reference. Other manufacturers also provide this...