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Reply to "Voltage regulator"

The six ohm resistor was a mistake, that's probably where the problem started.  The regulator is specifically designed for the 8 ohm load, the six ohm load is asking too much of it.  The reason that Lionel originally went to the 8 ohm resistor was the excessive failure rate of the AC regulator modules.

Let's assume the regulator voltage was designed to dissipate 5 watts in the 8 ohm resistor.  That would be 6.3 volts RMS at .8 amps.  If you put a 5.9 ohm resistor in, the power goes to 6.8 watts and the current 1.07, that may be too much for the regulator circuit and it's overheated and killed something.

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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