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I'm adding/updating some LEDs, redoing some wiring, etc. As part of that, I decided to reach out and get your thoughts on the following: I use MTH 4000s. When I originally installed my 1st one years ago, I added a QSI PowerGuard to each throttle.

Is this overkill and unnecessary with MTH 4000 technology?

Thank you, Terry

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Our club had Powerguards. I had to open them up once. What they are is TVS diodes along with a peak detector that flashes a LED when voltage is above the TVS quenching voltage. The flashing LEDs will make you a believer in TVS protection. Ours would create a light show at the train shows, mostly due to bouncing pickup rollers.

Bottom line Powerguards are good but TVS diodes are just as effective.

Pete

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

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