JK 4037 Flip Flop with Reset (CB25121E)

We found this circuit in the April 1988 issue of Radio Electronics magazine. The circuit can be reset electronically.

12 V Battery Charger (CB17546E)
This type of circuit and with this integrated circuit appears several times on this website. The...
Crystal Controlled Multivibrator (CB23783E)
Using transistors of the time, this circuit was published in Radio Electronics magazine in...
Integrated AM Radio (CB18179E)
The integrated circuit used in this 1982 project is not very common today. It can be adapted to...