[R-390] Millivac RF Voltmeter help

[Philip B Atchley]

Hello All.
I have a test instrument here that I'd like to get a little information
on.  First, let me mention that I have used many Laboratory RF
instruments during past "RF careers" but have never run across this
particular instrument.

I did a web search on it but all I found were a couple units offered for
sale with no other information.  I suspect it is rather old as it appears
to be early solid state and I can hear the "Choppers" whine.  It's last
inventory sticker is 1994 so I suspect it was pulled out of service
around that time.

All I know about it:
It is a rack mount Millivac Industries Model MV-828AR RF MilliVoltmeter
with "Type G probe".  The instrument has full scale ranges of 1mV to 3
Volts full scale in 8 ranges.  It should be able to be read down to about
.2mV or less.

One interesting point.  The screw on probe tip is missing, though I
believe the probe is electrically complete.  But on the 1mV range the
instrument is very sensitive, even shining a FLASHLIGHT or other light on
the end of the probe affects the meter ZERO (Discovered when I turned the
bench light on).

QUESTIONS:
Anybody know the frequency range, input impedance etc of this unit?  Can
this unit be used IN PLACE OF the HP Voltmeter/RF probe in the alignment
of R-390A's etc? 

73 de Phil  KO6BB
Loving home provided for wayward Boatanchor Receivers
ko6bb@juno.com
Merced, Central California
37.18N  120.29W  CM97sh

________________________________________________________________
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today!  For your FREE software, visit:
http://dl.www.juno.com/get/web/.