Full Comparator (CB6548E)

Applying an operational of the time, this circuit of an old documentation can be elaborated with modern operational. The feed must be symmetrical.

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Additional Pull Pull (CB6119E)
This stage was found in a 1964 Electronic Design. The transistors are of the time and the shape of...
Successive Tone Decoder PLL (CB3958E)
This circuit with the known PLL 567 can be found in other versions in this section and in this...
Audio Monitor (CB421)
In this circuit, the LED Will blink in a presence of na áudio signal in the input. Gain is...