Of those 3, one was originally my own. The other 2 came from auctions
where I gave a couple bucks for them. The reason I can not just
change parts from one to the other is that they are all different
amperages. The thermal breaker needs to be a 12A (its a 2 or 10A
charger). None of the other chargers are even close, they are much
higher AMP chargers. I cant use the diodes from the 10A on a 50A or I
think the other one is a 20 to 30A. This is where the problems arise.
Getting parts these days is very difficult. Even when you do find
them online, many (or most) companies want a minimum order and or
charge very high shipping making the whole repair cost more than a new
charger. I did find one place that has the thermal breakers, except
they dont have a 12A. I have to choose either a 10 or 15, which means
a 15 or it will trip all the time at full charge. The part is around
four dollars. For some reason their shipping would not calculate on
the web which means I have to call them tomorrow, but I already have a
feeling the shipping will be $10 or more, which will make me ask
myself if it's worth the cost. (the item weighs .7 oz, so the real
shipping should be about $2). And I am not sure if they have a
minimum either.....

What ever happened to the good old days when every city had a well
stocked electronics parts store? I recall them in the 60's and spent
a good amount of time and money at them, when I was in my teens.

-----------------

On Sun, 28 Oct 2007 17:46:30 -0400, "Joseph Meehan"
wrote:

That is true. While I would expect someone with three of those
commercial units would not be sitting on three of them out of commission and
not repairing or having them repaired or at least having someone in the shop
that would know the answer to the question. Of course some very old ones
might require more redesign and expense to make it worth it. I would not
expect three of them to go out at the same time.

The OP appears to understand enough about them, that I am surprised he
did not know where to get the parts.

"George" wrote in message
...
Joseph Meehan wrote:
I don't know about the rest of the world, but I consider almost all
those chargers throw-a-ways.

But he didn't mention if they were big box style chargers or good ones. I
have a beefy charger that I have been using for years that I got because
it was declared inoperable. It had blown stud diodes and it was a quick
repair.