Video Modulator (CB21088E)

Found in older American documentation, this circuit is intended for use with analog TV. The active component used is from the period.

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28 V to 5 V converter (CB7331E)
Found in National Semiconductor documentation from the 90's, this circuit has an output current of...
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Current Transmitter for Resistive Loads (CB14316E)
The circuit presented is from the Linear Applications Handbook of the National Semiconductor of...