[JackA]

On Monday, February 2, 2015 at 9:19:52 AM UTC-5, Scott Dorsey wrote:
mcp6453 wrote:
When I fired it up, it didn't work. After a little signal tracing, I discovered that the needles on both meters are
frozen solid. When I took them apart to see why, I found that the movements are totally saturated with metal filings. It
looks like someone dumped the guts from an Etch-A-Sketch in it.

You would think that these meters were stored near a milling machine or some such. However, the meters appear to be
sealed. They were stored in his attic. They were certainly hard to open. Do you have any thoughts what might have
happened? I seriously doubt that there is any hope for them.

There is hope for them, but it will take some time. Take some Scotch tape,
fold a loop of it in half, and brush it across the movement. Keep doing this
over and over and don't forget to clear the gap in the middle by sliding small
pieces of Scotch tape down into it to pull the particles out a few at a time.
It is annoying, painstaking work, but it's not impossible.

Probably dirt in the jeweled movement. Could always demagnetize, blow away the metal, then remagnetize!!

Jack


Tramp metal is nobody's friend. Who knows where it comes from? It's like
those fake Beatles tracks...
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."