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[SOLVED] help with rainy alarm simulation

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charick

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HELP (rainy alarm simulation using multisim)...

Hi,

could any one help me out how to run this project:
49_1300227527.png

this is rainy alarm circuit design, when there is no rain my circuit suppose to be open circuited. but my problem is when i open circuit the probe and simulate there is still voltage across the variable resistance, and the variable resistor represents the output speaker..

could anyone help me how to make off both the pnp and npn transistors when i take out the probe?

thanks. your comments, suggestions and posting me back matters to me..

thanks.

JARIK
 
Last edited:

From your schematic.
1. Both leads of the XSC1 are connected to ground.
2. Transistor Q3 is PNP type, so the E pin should be connected to Vcc at point 1.
 

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