[R-390] HP-410Bs and AN/URM-25s

[Barry]

Hi Bob,

Any chance of posting pictures of that 410B anywhere?  I'd like to see that one.

Barry - N4BUQ


> I recently procured a DC probe for mine.  My HP-410B is a peculiar one. 
> My probes are NOT soldered in under the chin.  Either a previous owner 
> built a beautiful aluminum piece with banana jacks for ohms and common,
> and 1/4" Phone jacks for the DC and AC probes, OR it is a prototype.
> 
> I don't know which, but it was done in a very professional manner.
> 
> It makes thing a lot neater on the bench, as when not in use, the meter
> can sit on a shelf, and all the probes can be hung up out of the way.
> 
> I've checked the HP-410B against known, 1% resistors, known DC source of
> 3.7VDC, and checked the AC by a known fixed voltage.
> 
> The old gal is right up to snuff!
> 
> Bob - N0DGN