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Automation schematics:
Simple photo relay | Time relay |
Automatic switch This simple circuit can be used to switch off the amplifier, other audio source, or any other device. When there is no music signal (IN.1 and IN.2) longer than the time given by R4, any device connected to relay contacts (LOAD) will be switched off. Russian transistors there are used in the schematic, but they can be changed with TIP31C, TIP29C. |
