[ARC5] AN/URM-90...

Kenneth G. Gordon kgordon2006 at frontier.com
Fri May 8 11:12:40 EDT 2015


On 8 May 2015 at 10:21, Roy Morgan wrote:

> 
> 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.

Oh. That is nice to know. One thing I have always found somewhat irritating 
about my rebuilt Heathkit C-3 "Condenser Checker" is that I have to use a 
vice-grip with the handles off to one side to hold the very heavily spring 
loaded "leakage test" switch in the closed position in order to reform a cap.

> 
> 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.

Ha! See previous e-mail. I heartily agree. :-)

> 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.)

I got one from BAMA, which appears complete. I'll look in the instrument to 
see if there is another there.

Ken W7EKB


More information about the ARC5 mailing list