Heath VM's

[Dave Wood]

In regards to Ed's comment,  owning all instruments in question;  One of
the main differences is that the IM-25 is a solid state VOM, verses the
IM-28/5228 which of course is tube.  The IM-25 does not fair well around
strong RF fields relative to the tube version, Heath even warned about this
in the advertising.    The IM-25 is more portable due to battery supply and
not considering the size.  Love all those large meters!  Dave




>ER: Harvey;
>I read with interest your post. I have never seen an IM 5228 and don't
>know it's specifications. I have 2 ea. IM -25 and consider them the best
>I have ever seen, with 9 voltage scales (full scale .15 volt range),
>separate ohms, voltage, and current range switches and it has a 3 by 6
>inch (viewing area) meter too. It will operate on either 120 VAC or
>internal batteries for field use.
>PLease educate me and tell me what features the IM-5228 has that makes it
>superior.
>Thanks and best regards.
>Ed Richards
>

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