Reply to "Circuit Board / Chip Confusion"

Chuck K posted:

I too use a post war Lionel transformer and at times with modern electronic engines on one of my loops. I just added a Dallee circuit breaker between the transformer and the track. They are inexpensive, simple and have a re-set button.

https://www.dallee.com/Model-T...ircuit-Breakers.html

 

I disagree, in my view they are actually very expensive.

You can get TVS diodes at DigiKey for $0.68 per diode and their shipping is very reasonable.

DigiKey also has the same Potter & Brumfeld circuit breakers used in the item that Chuck K links to:

• 3A breaker is $8.38
• 5A breaker is $5.31
• 8A breaker is $6.00
• 10A breaker is $5.38

You can find these parts at other suppliers, I just happen to use DigiKey because their prices are competitive and their shipping rates are low.

Ponz, if your PW transformer is in good shape physically, in good working order, you protect it with properly rated thermal breakers, and you protect your engine's circuit boards with TVS diodes, you should be fine, and you won't be wasting money.