Oscilloscope question

[Dave Brown]

----- 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 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.


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 
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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