[AMPS] 50hz? 25Hz???

[measures]

>
>Have a receiver here and power supply is marked 25Hz. USA made for USA
>market.
>Who knows when and where in USA 25Hz was so common that 'consumer
>electronics'
>was manufactured to operate on it.
>
At one time, 25Hz was used to power steel-making furnaces. 

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
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