455 kHz generator (CB8218E)

This circuit was obtained in a 90s Popular Electronics. It is used for tuning on AM radios. The field effect transistors used support equivalents.

| Clique na imagem para ampliar |

Photoelectric relay (CB23572E)
Found in a Radio Electronics magazine from September 1958, this circuit has an LDR powered by the...
Curve plotter (CB7908E)
With this circuit it is possible to visualize the characteristic curve of a component on an...
Positive to Negative DC-DC Converter (CB12543E)
We present a DC-DC converter circuit that can operate with input voltages from 2.4 V to 14 V and...