Gain 1000 Amplifier (CB8998E)

This circuit was obtained in a 90’s documentation. The operational amplifiers are from that time.

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Sensitive light relay (CB22103E)
This circuit was obtained from old documentation, triggering when there is a power cut on the...
Operational with hysteresis (CB21523E)
Suggested by an American documentation from the 1960s, this circuit provides an operational...
Zero crossing detector (CB3889E)
This is one of many zero crossing detector that can be found in this section. It was found in...