555 Interval (CB20659E)

This simple windscreen wiper interval was found in old American documentation. The relay must have contacts of at least 2 A.

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DC Amplifier 3 (CB21904E)
This circuit was obtained from Raytheon documentation from the 1960s. The transistor is one of the...
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In the figure we have the traditional configuration of a pulsator or flasher with low consumption LED...
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