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Šema kola za automatsko paljenje i gašenje


Willi Studer

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Na šemi je audio ulaz na aktivnom zvučniku a ispod njega kolo za automatsko uključivanje releja za napajanje po dolasku signala na IC1, pin 3. Kolo releja zatvara TR10. U odsustvu signala, sistem se isključuje nakon oko jednog minuta.

Koje komponente određuju vremenski interval isključivanja? Očekivao sam kondenzator koji se prazni ali ga na šemi ne vidim, tako da je verovatno u pitanju neki drugi sklop.

Hvala unapred na pomoći.  

 

Screenshot 2022-02-17 at 23.06.03.png

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