[Elecraft] KPA-500 Line-Voltage Issues

[Josh Fiden]

Transformer core can saturate if line frequency is too low. Except I’d be certain KPA-500 uses the same transformer for export to 50Hz countries so your variations are fine. 

Many years ago when I was young & dumb discovered this the hard way. Customers would take products with 120v/60Hz line xfrs and run them in Europe 240V/50Hz with a step-down transformer. They would saturate, overheat & pop fuses. 

73,
Josh W6XU 

Sent from my mobile device

> On Jul 6, 2022, at 12:51 PM, Dick Bingham <dick.bingham at gmail.com> wrote:
> 
> Greetings everyone
> 
> I hesitate to use my KPA-500 here at this CN98pi QTH. LIne frequency here
> varies daily between 58.xx-to-61.yy Hz