Subsonic Filter (CB25143E)

We found this circuit in the June 1988 Radio Electronics magazine. The power supply must be symmetrical.

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Class A Amplifier - 2N3055 (CB1002E)
I found this circuit in an article in a 2003 publication. The circuit is an example of how to...
Simple SCR alarm (CB22090E)
This circuit drives a buzzer or electric buzzer but can be used to trigger a relay or other load....
BCP56H Medium Power NPN Transistors 80 V 1 A
May 2017 - Mouser Electronics is already in stock with the new BCP1395 transistors from Nexperia....