[Premium-Rx] W-J DRO 333A schematics

[W2HX]

Previously I scanned some sections for someone who needed some specific
pages.  Here they are, It is not the complete manual, but hopefully has some
things you need.

http://www.w2hx.com/x/WJ-DRO-333/


 
73 Eugene W2HX
 

-----Original Message-----
From: premium-rx-bounces at mailman.qth.net
[mailto:premium-rx-bounces at mailman.qth.net] On Behalf Of Bob Betts
Sent: Tuesday, February 28, 2012 10:39 AM
To: Premium-Rx at mailman.qth.net
Subject: [Premium-Rx] W-J DRO 333A schematics

Paolo:
Yes, and please let me know if you should find one before I do.
I also need the tech data.
I have one that I just got working. No schematic so I used the "head
scratch" method and reverse engineered enough to find the problems. These
are very stable devices, but somewhat insensitive for my purposes.
I've since added a 20 dB low-noise preamp to the input, that is switchable,
for my service bench activities...nice and sensitive now.
 
73,
Bob, N1KPR
 
La Spezia, Italy, Feb. 28, 2012

Hi All:
Here is Paolo from La Spezia, Italy. I'm in a great need of the Service
Manual (with schematics) for the Watkins-Johnson DRO-333A Frequency Counter,
can anybody help me?
TYVM and best 73!
Paolo
Paolo Viappiani
Via G. B. Valle 7 19124 La Spezia, Italy
Phone: +139-187-21647
email: pviappiani at tin.it, pviappiani at gmail.com 



http://www.bobsamerica.com
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