64 us pulse delay (CB6659E)

Found in a 1968 Electronic Design, this circuit makes use of an unusual ultrasonic delay line today.

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Zero Crossing Detector (CB14096E)
This circuit is from the Linear Applications Handbook of the National Semiconductor of 1994. The...
256 Sequences Sequential (CB17405E)
We found this circuit in a 2002 documentation. As it uses still common CMOS integrated circuits, it can...
Low Frequency Mixer (CB14220E)
The presented circuit uses an LM3900, transconductance operational amplifier. It was found in the...