This card turned up in a used loco. So far it is a mystery - anyone know who made it?
Might be an early Sierra.
They have(had) those two programing buttons on the right.
do not know who’s card it is but i see somthing that is bad. it appears to be mounted with RTV which i was allways told was a no-no around electronics as it is corrosive.
Al Pomeroy said:I used to work at a place that produced high quality industrial electronics. I can't say that I know the chemical properties of RTV, but I'm sure we had people there that did. We used it on a regular basis to stabilize large parts that otherwise couldn't pass the shock and vibration tests. I never saw any evidence of corrosion on units that came in from the field for repair, many which had been out there for 10 years or more. ?
do not know who's card it is but i see somthing that is bad. it appears to be mounted with RTV which i was allways told was a no-no around electronics as it is corrosive.
Early RTV emitted something corrosive when curing (you could tell by the smell of vinegar).
The “new” stuff has changed as I understand it.
I’d use it without concern.
If you are still concerned, check the manufacturer’s site, they will let you know what comes out of it when it is curing.
Regards, Greg
One of the issues behind the don’t use silicone to mount electronics was because silicone actually trapped moisture. In some cases it would cause damage/corrosion simply because the moisture couldn’t evaporate etc.
Jon.
Jon Foster said:
One of the issues behind the don't use silicone to mount electronics was because silicone actually trapped moisture. In some cases it would cause damage/corrosion simply because the moisture couldn't evaporate etc.Jon.
