[ARC5] AN/URM-90...

[Roy Morgan]

On May 8, 2015, at 7:36 AM, DSP3 <jeepp at comcast.net> wrote:

> Actually, its a rather nice, albeit manual,  RLC bridge (meter).

Yes, in deed.  It is a true boatanchor bridge.  The instrument itself is called the ZM-3. I used mine to reform capacitors.  It helps in this work to have a wine bottle cork to hold the “apply voltage” lever switch in position while the cap is charging/reforming.

It is kind of a kluge to operate, but it does a lot.  Take the time to learn how to run the thing.  Modern solid state gadgets are fast and *apparently* accurate, but no where near as fun to use.

I have a copy of the manual in digits if you don’t find that online (Bama may have been the source of mine, or LOGSA back when that was useful for such manuals.)

Roy


>  For what you get, however, the newer digital instruments are a lot easier to use.   If its in nice condition, why not keep and (occasionally?) use it?  The _book_ is a necessary item!  For what it may be worth, one of the MRCA group members sold one at Berryville last year for about $20. Someone got a pretty good deal...
> 
> Jeep - K3HVG
> 
> On 5/8/2015 12:59 AM, Kenneth G. Gordon wrote:
>> I found one of these in my stash. What's it good for?
>> 
>> Ken W7EKB
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Roy Morgan
k1lky68 at gmail.com
K1LKY Since 1958