VTVM Probe Troubles

[WB2TBB]

Take it apart, and clean the contacts. They are not gold or silver, so you
can give them a once over with an eraser. Just so they are shiney. You could
then experiment with some lithium grease, or PRO GOLD (deoxit) but I would
just clean it and leave it alone. By the way....The same holds true for the
phone plug going in to the meter. Clean it with some metal cleaner and paper
towels. I bet it currently looks somewhat black! Your ohms readings will now
be solid, not drifting around.
...Dave

-----Original Message-----
From: Chuck W4MIL <CEMILTON at AOL.COM>
To: HEATH at LISTSERV.TEMPE.GOV <HEATH at LISTSERV.TEMPE.GOV>
Date: Tuesday, February 01, 2000 9:18 AM
Subject: Re: VTVM Probe Troubles


>In a message dated 02/01/2000 2:12:33 AM Eastern Standard Time, dr at CEI.NET
>writes:
>
><< Does anyone have a *good* solution to the problem of intermittent
contacts
> in the Heath VTVM probe?  >>
>
>
>Don,
>
>Can't speak directly to the probe but have encountered same problem with
>other slide type switches used by Heath.  My latest encounter was with the
>HM-102.  Same symptoms u describe.  Took the switch apart and found ancient
>lubrication had hardened and was coating the contacts.  Cleaned all that
>stuff out and took the contacts back to shiny clean condition.  Lightly
lubed
>with "modern" lubricant-----reassembled-----and it worked FB.
>
>Your mileage could vary.........
>
>73 de W4MIL
>
>Chuck
>
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