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QUOTE (Brian Considine @ 16 May 2008, 10:44) <{POST_SNAPBACK}>AFAIK no manufacture or distributor of decoders (except maybe one - & I cannot remember which one) recommend leaving capacitors in place.

Richard sums up the whole issue very neatly.
ZTC "Any manufacturers' motor suppression components connected across the motor terminals
must not be removed. These will not affect digital control operation. These components
help reduce radio frequency interference from the motor, and are a legal requirement in
most countries and jurisdictions. Also, removing them can have a detrimental affect on the
operational performance of a DCC decoder" from their installation instructions. Yeah, right.

There are plenty who will not tell you to take supression components out because of a misguided, IMHO, interpretation of the EMC regulations. What you do to your own locos (i.e. removing supression components) is your own business and is not a legal issue unless you do it and resell the loco in the course of a business. Even then, it's not an issue if the loco and decoder meet the regs, it's just harder to prove.

I almost always remove suppression components, especially as they can take up valuable space in N.

Andrew Crosland
 
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