K-line lockon surge protector

From legacy site. On August 29, 2009 02:04 PM, Kevin Shelton wrote: The following information was taken directly from the product package; Protects your valuable engines equipped with sophisticated electronics such as sound, RF receivers and motion controllers. for all tubular rail O gauge track Protects against power surges, so common in today’s power distribution. Protects against voltage spikes whether generated on track (e.g. from derailments) or if from the power line itself. This low cost insurance works for all engines regardless of the manufacturer. The special duplexed electronics absorbs power surges before your delicate electronics can feel them. This device is a bi-directional duplexed protector.

Question is. Do they really protect as claimed? Do they reset or are the one shot disposables? If so, why are they not mentioned on forum? Thanks FMH

Find them NOS/NIB in bargain bins for about $2.50.

 

Fmh,  Where are you finding them? Thanks, Pat B.

I'm guessing they're simply a TVS device from the description.

I took one apart. From memory,  it was a 33 volt TVS with a  ceramic capacitor (a few PFs dont remember the value) and a resistor to an LED.I asked on the forum here the reason for the capacitor and was told it was for signal interference.

 

Dale H

This is what is inside one of mine. 

I believe it's a 33v TVS. No circuit breaker. 

 

Thanks Can't hurt to use. Plus give me an Led indicator. With use it on spurs. FMH

Pat, I may be divulging my of my best bargain secrets. I pick up my kids on Friday around 5:00pm about a 1/4 mile from Charles Ro. Before the weekend crowd has had dinner. If the kids have been good, they get a choice to go to get a toy. Nice unusual stuff for kids beside Thomas the train. While they check out the layout upstairs, I go through the bargain table. It can get expensive, because I always find something interesting to add to the always expanding layout. Sometimes used, sometimes discontinued items, sets that are parted out, or stuff that does not move or maybe broken package but usually about half what the EBayers ask. Nice people to deal with. FMH

Thanks FMH! Regards, Pat B.