On Wed, 16 Feb 2011, cdb wrote:

>
>
> :: Are your TIP41Cs TIP41Cs  ?
>
> Definitely TIP41C's.
>
>
> :: How old are the cores?
>
> At least 5 years old.
>
> :: What are they made of?
>
> Ferrite.
>
> :: Try swapping cores (whole inductors) between a good and a bad one
>
> Tried this, it appears to solve the immediate problem, but not the cause =
or
> possible prevention.

Is your 24v line being used to drive electromechanical devices like payout=
=20
mechs maybe? Are these damaging your fluroecent divers over time?

Regards
Sergio
--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.