Poligonul pentru tir electronic este destinat instruirii tineretului pentru apararea patriei: Cu ajutorul lui inveti sa ochesti fara sa consumi munitie reala.
PRINCIPIUL DE FUNCTIONARE
Fotodioda Fd este luminata — tranzistorul ti este deblocat. Potentialul pozitiv din colectorul sau, aplicat bazei tranzistorului T2 face ca acesta sa se blocheze, iar potentialul din colectorul tranzistorului T2 va debloca tranzistorul T3. La rindul sau, T3 va determina sa treaca un curent prin reieul trestie si va inchide contactul K. Totodata se va incarca condensatorul de 200 Mf. Contactul K. deci, pune sub tensiune amplificatorul de audiofrecventa, alcatuit cu tranzistorii T4, T5, T6 si T7, impreuna cu generatorul de ton GT — care este construit cu doi tranzistori pe schema circuitului basculant stabil.
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