Double Throw switch with alternating output activation. The output lights are purposely attached to the alternate fans to show how to reverse outputs if wanted.

An interactive resistor, lamp, fan and battery circuit built in the DCACLab online simulator by Tim Grey. Open it to run the simulation and measure it.

Preview of Double Throw switch with alternating output activation. The output lights are purposely attached to the alternate fans to show how to reverse outputs if wanted.

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What's inside

1× Battery
1× Resistor (4.02 Ω)
1× Switch
2× Lamp
2× Fan

About

By Tim Grey
Saved December 09, 2017 · updated January 15, 2026
2,393 views
Page: dcaclab.com/circuits/11702-double-throw-switch-with-alternating-output-activation-the-output-lights-are-purposely-attached-to-the-alternate-fans-to-show-how-to-reverse-outputs-if-wanted

Embed this circuit

<iframe src="https://dcaclab.com/experiments/11702-double-throw-switch-with-alternating-output-activation-the-output-lights-are-purposely-attached-to-the-alternate-fans-to-show-how-to-reverse-outputs-if-wanted/iframe" width="560" height="410" frameborder="0"></iframe>

Cite: Grey, T. (2017). Double Throw switch with alternating output activation. The output lights are purposely attached to the alternate fans to show how to reverse outputs if wanted. DCACLab. https://dcaclab.com/circuits/11702-double-throw-switch-with-alternating-output-activation-the-output-lights-are-purposely-attached-to-the-alternate-fans-to-show-how-to-reverse-outputs-if-wanted