[Milsurplus] URM-25F meter?
John Hutchins
olegerityincj at austin.rr.com
Mon Oct 18 22:34:11 EDT 2010
Peter -
There is a article on the web about repairing meters such as this. If
you are lucky you could unwind one turn and re-solder, that is if the
open is at the tie point.
-Hutch
On 10/18/2010 8:17 PM, Peter Gottlieb wrote:
> I picked up a decent condition URM-25F signal generator cheaply at a hamfest.
>
> Unfortunately, even though it produces output, the meter turns out to be open.
> Upon removing from the panel I can see that it had already been opened up,
> actually unsealed by unsoldering the face glass, then carefully reassembled so
> it would look untouched from the outside (without resoldering). Careful further
> disassembly and measurement shows the coil itself to be open rather than a
> connection.
>
> This makes it essentially unrepairable.
>
> Would anyone have such a meter laying around? It is a 100 uA FS, 2.35" flange
> OD meter with a uV top scale and a % mod bottom scale. This one is a Burlington
> Instrument model 321.
>
>
> Peter
>
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