Institute Newton C. Braga

Circuit Bench

Police Band Receiver (CB23560E)
This circuit is from Radio Electronics magazine from June 1958. The tuned range at the time was...
Frequency Divider Using the 4017 (CB209E)
Decade counters, such as the 4017, can be cascaded as sourcing signals with the frequency divided...
LC Oscillator (CB4552E)
This oscillator can produce 2 to 10 MHz signals depending on the coils used. The transistors can...