[Heath] SB-220 plate meter

[Larry Oneets]

First make sure that the needle is not sticking because of static in the
meter face, go over the face with a damp cloth and see if this fixes the
problem.  If not static, the meter can be removed from the unit, opened up
and clean out the slivers of material from between the magnet and the coil
using a small piece of paper.  This may also be caused by wear of the
bearings and slightly changing the tightness of them. When working on a
meter the work is not difficult, one just needs a steady hand.  If the
meter is bad you have nothing to loose but much to gain--you just may fixit
and ain't that great. Just take care around the coil spring so as not to
ruin it.  I always work on a desk surface with a cloth over it to keep
parts from going away and never to be seen again.
Larry

On Sat, May 16, 2015 at 8:06 PM, Kenneth G. Gordon <kgordon2006 at frontier.com
> wrote:

> Hmmm....well, the plate meter on my just newly aquired SB-220 is very
> sticky and doesn't appear to read accurately.
>
> Although I have not yet checked the calibration resistor(s), the meter
> itself is very "sticky", with the needle hanging up at various places on
> the scale, but most especially near the bottom 100 mA position.
>
> Might anyone have a replacement? Or know someone who could repair it?
>
> Ken W7EKB
> _______________________________________________
> Heath mailing list
> Heath at puck.nether.net
> https://puck.nether.net/mailman/listinfo/heath
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/heath/attachments/20150517/e11d2de6/attachment.html>