Trapezoidal generator (CB8885E)

This interesting circuit was found in a 1968 documentation. The transistor can be a general-purpose equivalent. The circuit can act as a shield.

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Voltage Comparator Bistable (CB19360E)
This circuit is from European documentation from the 1980s. The circuit consists of an R-S...
LED driver (CB20550E)
Found in the documentation on PCs, this circuit excites LEDs whose current is determined by R3....
aaaa SCR oscillator for code practice (CB8795E)
This simple SCR relaxation oscillator was indicated by a 90s Popular Electronics. The frequency is...