latest Wailing Alarm Siren circuit Schematic with explanation

  
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Browse » home » alarm » circuit » explanation » latest » schematic » siren » wailing » with » latest Wailing Alarm Siren circuit Schematic with explanation *The Loudspeaker LS and the resistor marked Rx  should be together 75 ohms. If you have a standard 8-ohm speaker then Rx is 67 ohms. The nearest value is 68 ohms. So for a 8 ohm lou
latest Wailing Alarm Siren circuit Schematic with explanation - schematic

dspeaker Rx is 68 ohms. For a 4 ohm loudspeaker Rx is 71 ohms, for a 25 ohm loudspeaker Rx is 50 ohms, etc, etc.



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