This circuit for a simple alarm system was suggested in an article in Electronics Now magazine. The circuit has a small power stage that can be changed.
This circuit is from the 1993 Motorola Linear Interface ICs. Equivalent operating may be used and...
The bipolar transistors may be BD136 and BD136 and FET of any type for 1 A current at least. The...
June 2017 - The new EEH-ZK (Type V) hybrid conductive polymer capacitors from Panasonic with...