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Electrical Question about Voltage Adapters


By Dave Rongey - Summary:

I have a small fan that calls for a 3v adapter. Can I use a 7v adapter instead?

Electrical Question from June about Other Electrical Issue
Background: June, a Homeowner from Farmington Hills, MI

Question: I have a small fan that calls for a 3v adapter. Can I use a 7v adapter instead?

Dave’s Reply:
Thanks for your electrical question June. No – you really need to stay with the 7v designation otherwise you will damage the fan motor windings. I believe you will find multi-voltage adapters at Radio Shack, Best Buy  or any home electronics outlet store.

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FAQs Frequently Asked Questions and Comments

2 Responses to “Electrical Question about Voltage Adapters”
  1. Dave Rongey says:

    Please see the Electrical Calculations and Formulas page. There you will find a link to Voltage Drop Calculations. This should help you.

  2. oswald furtado says:

    How much length after electricity voltage dropping
    eg 220 ac volt near of 300 meter i can get 220 volt or less than that?