Full wave rectifier (CB9455E)

This precision signal rectifier was found in an Electronic Design. The components used are from that time, uncommon nowadays.

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Sensitive Field Strength Meter (CB14900E)
This sensitive field strength meter was found in 1993 documentation. The instrument may be the...
Driver for Nixie Tube (CB6682E)
This circuit was found in a 1967 General Electric manual. It is intended for the control of high...
Variable output for the 7812 IC (CB24825E)
The figure shows how to vary the output voltage of a 7812 regulator between 12 V and 2 V less than...