Re: Used Analog vs New Digital Scope

In article <[EMAIL PROTECTED]>,
        [EMAIL PROTECTED] (Cyber Vagrant) writes:
> I looked to avail for a 585A.  Although there were some 435, 453,

That's a nice 'scope.  Not too long ago, I spotted one with a note on
it that read "free," so, I grabbed it.  No, it's not for sale. :-)
Good luck finding one; they do turn up here and there, when you least
expect them to.

> 5440, 465b 100Mhz, and one Gould 1425 20Mhz apparently in good
> condition.  At the moment all I need to do is audio work.  In the
> future I'm planning to building some switched power supplies so I
> might need a faily fast one then.

One thing that I forgot to mention, beware of the HP 17xx series
'scopes.  Almost 20 years ago, I picked up a 1707B for US$5 at a
college surplus sale; it worked great for several years, then, one
night I made the mistake of leaving it on overnight.  Apparently the
HV transformer overheated, and burned out.  It took a long time to
find a replacement.  Actually, I didn't find a replacement HV PSU
module for this 'scope until this past year!

BTW, does anyone reading this know which leads to the HV module
connect where?  Alas, in the course of quite a few years, I lost my
notes from when I disassembled that part of the 'scope.  Now, I don't
know how to connect the new module to the 'scope.  IIRC, all of the
17xx scopes use the same HV module, so, if anyone reading this has one
and can kindly take a quick peek inside theirs...

-- 
Copyright (C) 2003 R. D. Davis The difference between humans & other animals: 
All Rights Reserved            an unnatural belief that we're above Nature & 
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