FET Switch (CB6725E)

This switched filter was found in the 1969 documentation. The FET should be current-matched and eventually equipped with a heat sink.

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Remote control receiver (CB21914E)
The frequency depends on the coil and is not found in the original documentation but should be...
Digital Do Nothing (CB26218E)
This is a device for those who need to show that they know how to use digital electronics but have...
Sinusoidal generator CA3130 (CB21987E)
Using an operational amplifier with FET, this circuit from a 1977 publication can generate...