modified 8 years ago

Дверной звонок одной тональности

00:46:34

R1 — резистор МЛТ-0,5, 10 кОмR2, R4 — резисторы МЛТ-0,5,  2,2 кОмR3 — резистор МЛТ-0,5, 91 кОмS1 — кнопка А1 0,4-127C1, C2 — конденсаторы К73-17,  4.7 мкФ,  63 ВVT1, VT2 — транзисторы ГТ109ЖVT3 — транзистор ГТ402ИB1 — динамик MRP 28N-A, 100 Ом

published 8 years ago

Thrashard96

8 years ago

It won't work. You need an AC signal, not DC, in order to hear something

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