5V Powwr Supply Crowbar protection MC3425 (CB14530E)

This circuit is suggested by Motorola in its 1990 Linear Databook. The integrated circuit is no longer common in the market.

NE602 Frequency Doubler (CB25303E)
This circuit provides a signal that is twice the frequency of the input signal. The circuit was...
5W amplifier (CB17330E)
This unusual amplifier configuration is from 1986. The circuit has a high resting current given the...
Ultra Precise Delay Circuit (CB5152E)
This circuit is from an 80's American documentation. The circuit uses components of the time which...