I'm using a deep cycle marine battery. It's big. I don't remember the numbers, but I just bought it about 4 months ago, it's charged with a trickle charger all the time, and it runs other things just fine. That is why I tend to think it's the 1812.

Thanks for trying to help!

C.

-----Original Message-----
John Mahony
Sent: Tuesday, February 24, 2004 8:44 PM
Subject: RE: [M]: 1812 converter


>
>A while ago I noticed that, when on battery, my LX200 seemed to almost
>stall at times. I looked >through the archives, and I seem to remember
>talking to someone, that some component inside >needed to be replaced.

What type of battery are you using? A small battery could wear out quickly.

>1 - What is the correct current that should exit the 18v side? 18v and how
>many milliamps? Can I >test this when not under load?

The current draw will depend on what the scope is doing at the time. High
speed slewing will draw more current. You can't test current when not under
load. That would be roughly analogous to trying to measure the water
current in a pipe when you've got the faucet shut off.


>2 - If I do need to replace something. Does someone have pictures or
>instructions on how to do >it?

I don't remember anything that normally needed to be replaced.
I think there was a discussion on Mapug(?) a month or two ago about a chip
in it that would be the first thing in it that would burn out if you
overloaded the 1812. Someone found a supplier but they had a $50 minimum
order, so he bought several and was selling the extras. IIRC, Doc G bought
2 from him, which is why I think it was Mapug.
-John.

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