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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Battery Monitor (CB4371E)
This circuit was found in an English magazine from 1979. The magazine no longer exists, but the...
Two-phase motor control (CB7269E)
Suggested by Sprague in the 90's documentation, this circuit applies to AC motors. The...
Active rectifier (CB7065E)
This circuit supplies a continuous voltage at its output, which is the peak value of the...