Low Voltage Flasher (CB6250E)

This circuit was found in Motorola documentation from the 1980s. PUTs are not common components today and lamp power depends on the SCR.

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Speaker Protector (CB25397E)
We found this circuit that protects speakers against current surges that occur when the amplifier is...
TC35670 and TC35675 Bluetooth Controllers (COM141E)
November 2016 - Mouser Electronics has in stock the Toshiba Bluetooth TC35670 and 35675...
Amplifying Stage (CB6127E)
This circuit is from a 1967 publication. The configuration holds true for modern transistors having...