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Re: [TenTec] more oscilloscope questions

To: tentec@contesting.com
Subject: Re: [TenTec] more oscilloscope questions
From: Stuart Rohre <rohre@arlut.utexas.edu>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 12 Jul 2010 13:56:38 -0500
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Back in the 1980 time period, we were funded by our lab sponsors to 
upgrade our test equipment.  At that time we bought 7 Philips scopes of 
various models, including storage.  Those were the equal of any 
Tektronix scope we had previously had and were the best value for the 
cost at the time.  They are still in use today!   One of the fond 
memories was of sending them to an outside cal lab traceable to NIST, 
and having them send us a minimum charge and test report saying they 
could not find anything needing recalibration.  And thiis was after a 
couple of years of portable scope use around the lab and on field trips.

There are high end and low end models in most any scope line.  I have 
seen perfectly stable Leader scops, and other import brands.  In the 
same breath, I remember the HP scopes of the 70's had the reputation of 
not having easy to trigger front ends and trigger circuits.  In fact, it 
was the high cost of Tektronix and the problematical triggers of HP 
portables that sent us looking at Philips line of scopes.  They were 
well made in the Netherlands, and later sold and represented in North 
America by Fluke, who have a long reputation of excellent test equipment 
in DVM and other meters.  In fact to broaden their instrument line they 
picked Philips as
a qualtity scope they could stand behind.

Another lesser known scope that had good value for the money was the 
Gould line of portables.  We have one of those still working from the 80's.

I saw Philips scopes sell at ham swaps for $125 in good working 
condition.  Like the older 3 digit Tek models, you will not find spare 
parts like transformers, and custom delay lines, and if your older scope 
fails, likely you will have to replace the whole instrument.  But, hams 
now have the ability to have better high end instrumentation than at any 
time in the history of amateur radio.  A complete work bench can be 
equipped for under $500, and much less in many cases.

-Stuart Rohre

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