This is a safety alarm device (SLD) is designed to automatically alarm (electrozone) in the case of penetration of unauthorized persons in the protected object — an apartment, dacha, garage. It is more immunity and no false positives. The unit is powered by 12-volt battery GB1 of the eight cells that consume standby current less than 5 mA.
(The end. Beginning at No. 9 and 10,’01). Electronic watch embedded in an improvised universal apparatus for charging batteries differ from the standard. Instead the category “des. min.” in the output “0.1 CH” is the idea of time is here more convenient for rapid calculations. The maximum count value “of 99.9 h.” Instead of the oscillator used household electricity 50 Hz, and the input of the amplifier-limiter is used for formation of the steepness of the pulses removed from the secondary winding of the supply transformer.
I remember a few years ago in the journal “modelist-Konstruktor” there is the material possibility of measuring electrical capacitance using a PC “Specialist”. Then published the program in machine code that allows with reasonable accuracy to determine the values of capacitors in the range of 0.1—1000 UF, and later version of it written in forth language, for which the wording, of course, a huge thank you!