Beacon with PUTs (CB9788E)

This circuit was found in old documentation, appearing in several ways in this section. PUTs are not currently common components.

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4 logical state indicator (CB7141E)
We found this circuit in an Electronic Engineering of the 90s. The circuit can be implemented with any...
Class A Amplifier - 2N3055 (CB1001E)
I found this circuit in an article in a 2003 publication. The circuit is an example of how to...
Tuning Indicator (CB1489E )
We found this circuit in a 1975 publication. The power supply must be symmetrical, but other...