[Elecraft] [K3] Why do they still use 1/4 inch phone jacks?

Jack Smith jack.smith at cliftonlaboratories.com
Fri Sep 17 18:32:17 EDT 2010



With respect to AC mains power standard, Tom Edison set the standard voltage (DC) at a nice even number 100 volts, plus 10% allowance for IR drop, yielding 110V, or so I recall reading.

Over the years, the 'norm' has crept up to 115V, 117.5V and 120V. It's typically 122 to 123V at my QTH.

Jack K8ZOA


On 9/17/2010 5:42 PM, Steve Wedge wrote:
> or 120V as
> our AC mains power.


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