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Old 12th Oct 2019, 12:46 am   #12
Jolly 7
Octode
 
Join Date: Feb 2018
Location: Southampton, Hampshire, UK.
Posts: 1,063
Default Re: LED indicator for A DIY PSU

OK, thanks for explaining. In relation to RF noise, does the stepdown transformer itself determine how much RF is being generated ? For example, I use the older heavier transformers as opposed to the really light modern ones found in almost all power supplies nowadays. If I were to use the latter type with a bridge rectifier instead of an SMPS, would I get a comparable low RF noise output ?
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