13 Apr
2005
13 Apr
'05
2:46 p.m.
----- Original Message -----
From: "Tom Jennings" <tomj at wps.com>
To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org>
Sent: Thursday, April 14, 2005 7:37 AM
Subject: Re: Oscilloscope question
On Tue, 12 Apr 2005, Scott Stevens wrote:
The THS720 etc, perhaps? Very nice DSOs.
Tee Tek 500 series scopes certainly don't suffer from
electromechanical issues. (one exception- fan motor bearings-but
easily fixed) Most owners will die before the scope does - possibly
The Tek 7000 series scopes are really, really,
undervalued these
days
for what they represent.
The problem with all of these older Tek devices, as pretty much
everyone who uses them for some time discovers, is that they soon
enough die of electromechanical issues -- the switches get touchy,
intermittent, then die -- and are essentially unrepairable.
It's too bad, as the 465's and the 7xxx's are fine scopes, and the
lowest-cost good quality scope I know of (the DSO Tek
table-radio-sized jobs, TDS-???), 60 MHz/100MHz, run close to
$900. from a hernia or heart attack bought on from heaving
those large
weighty beasts around! I still have a 545B and a 585 -plus a fleet of
plugins. Excellent scopes.
The 7K series pushbutton switches are a different story- they do often
fail in time, but are (with care) replaceable, and occasionally
fixable-parts mule plugins are handy to have, and still cheap enough
on Ebay etc. Tek 7K series would still have to be the best value
around in scopes - both analog and digital have their place in the
scope world-despite claims to the contrary from some.
DaveB, NZ
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