Sensitive triac controller (CB7864E)

This circuit, which can be used as a shield, was found in a 90s Electronic Design. The circuit uses a diac and the transistor can be general-purpose.

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Integrator with sample and hold (CB8876E)
This circuit is from a 70s documentation. The maximum sampling rate is 800 Hz. The operational...
SWR Alarm (CB4891E)
This standing wave alarm (SWR) warns when a high SWR value may mean an overload for the...
Source follower (CB7471E)
This circuit has a very high input impedance and a very low output impedance. We found it on a...