[R-390] signal generators

[Craig C. Heaton]

Hello Brad,

Both the URM-25D and a HP8640B are on my test/repair bench. Got my 25D for
50 bucks last year, it gets the job done! Only thing it lacks is a frequency
counter, most shacks have one on hand. One afternoon the 25D was recapped
and a shorted tube replaced, its ready for another 40 years.

The HP8640B has more whistle n' bells, built in freq counter and lock are
nice. You are going to pay much more for one and I'll bet you a soda it
isn't working 100%. Parts can be still found by searching for someone with a
hanger queen, or you can buy several to keep on hand for solid state
break-downs.

So if its just for keeping one old boatanchor R390 or R390/A working like a
wonderful receiver, a URM-25D will do. Got more stuff in the shack, some FM
receivers, etc., could be time to upgrade. I bought the HP just for
something to fix during the rainy season in Oregon. Still fix'n and the
rains haven't stopped.

73's
wd8kdg
Craig

-----Original Message-----
From: r-390-bounces at mailman.qth.net
[mailto:r-390-bounces at mailman.qth.net]On Behalf Of Brad Huff
Sent: Friday, January 13, 2006 10:53 AM
To: r-390 at mailman.qth.net
Subject: [R-390] signal generators


I have seen a few comments about the urm-25 vs the HP 606A, and we all know
that the HP 8640B is far superior to these. What is the general feeling
about the Boonton 103B? In today's world of cheaper surplus test equipment,
is it of any value to own a urm-25?-Brad
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