Lead Acid Battery Charger (CB26301E)

This power charger was found in a 1990s issue of Popular Electronics. Integrated circuits must be equipped with a heat sink.

| Clique na imagem para ampliar |

Wireless FM Microphone (CB11526E)
This excellent wireless microphone circuit for the varicap-modulated FM band came out in...
Simple Power Supply (CB16384E)
The simple low voltage source that can be used as a battery eliminator, shown in the figure was...
Third Order Asymmetrical Butterworth Filter (CB5110E)
This asymmetrical crossover filter was obtained from an 80s integrated circuit manual. The...