Originally Posted by 75462
Yes, the LM317 is failing. I suspect poor quality. I purchased mine from Texas Instruments $.50 ea. The entire disk with LED’s is the heat sink.
ahhh thanks for correcting me... I have a bunch of 302's they wont work to replace the 317
Our lamps don't have any heat sink on that... and the housing is plastic (like the old bakelite material)
Using the "what - if" principal if more heat dissipation would extend the life of the regulator chip. or should I buy a bunch of spares and stuff them in one of the motorhome's cabinets in anticipation of another failure - and consider it a sacrificial component of inherently bad design???
I already carry a low W soldering iron with us in the Seneca.
Steve & Stacy,
Ned and Ellie (Red Labrador, Border Collie/Boxer)
2015 Seneca 36FK
2007 Toyota FJC - on the trailer
1999 Yamaha Kodiak 400 - on the trailer
2021 Coors Light - in the fridge