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 Post subject: Mains Step Down Transformers and 50/60 Hertz Frequency .
PostPosted: 10 Apr 2019, 02:26 
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I notice that a number of contributors to this forum have raised the question of running 100/110 & 120 volt laserdisc players from 240 volt/50 hertz source
using step-down transformers.Whether the source voltage is 50 or 60 hertz does not matter as the player switch mode power supply rectifies the mains
voltage to DC.The resulting high voltage DC is then switched at high frequency and regulated using pulse width modulation.
I would also recommend that any step-down transformer be a toroidal type.They are more efficient, more compact and their external magnetic field is limited.
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 Post subject: Re: Mains Step Down Transformers and 50/60 Hertz Frequency .
PostPosted: 15 Oct 2019, 20:54 
Young Padawan
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I concur.
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