Solenoid draw

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I have a B-29 Friend/Foe switch panel. I want to use one switch for the on off switch and the keying button for the starter button. The amp draw would determine if the button and toggle will handle the job or if I need to install a relay.
 

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I have a B-29 Friend/Foe switch panel. I want to use one switch for the on off switch and the keying button for the starter button. The amp draw would determine if the button and toggle will handle the job or if I need to install a relay.


I have been told by people who wire cars/boats for a living to always use a relay
 

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