Band Pass Filter (CB19687E)

This bandpass filter has a simple feedback system. The component values can be calculated using the formulas found in the math section.

| Clique na imagem para ampliar |

Gain and Speed Handling Circuit (CB13059E)
The shield circuit shown in the figure has elements to obtain the maximum gain with the maximum...
Operational Crystal Oscillator (CB19830E)
Equivalent operational amplifiers can be used on this crystal-controlled oscillator. The circuit is...
One Transistor Receiver (CB12846E)
This experimental receiver for the medium wave band uses a germanium transistor that can be...