CBM 8032 SK (& electronics) - test-drb@ccmp.vtda.org

23 Aug 2001

On Aug 23, 10:29, Adrian Vickers wrote:

...
  >> >> I'd have to buy a 'scope,
and they're not cheap...
 >> >
 >> >You can get _good_ second-hand 'scopes for less than a poor quality
new=20
...
  >> >one. Stewarts of Reading often have
Tektronix 'scopes for a few hundred=20
...
  >> >pounds (something like a 465 or a low-end
7000).
 >>
 >> Which would you recommend? I'd pay =A3200-=A3300 for something that's
goi=
...
  >
 >Don't buy a new low-end 'scope (certainly not one of the Lucky Goldstar
 >or whatever that Maplin sells (I think the 'Lucky' part of that brand
 >name describes what you are if it works properly :-))). The Tekky 465 is
 >a small-ish portable instrument. The 7000 is larger, but it takes plug-in
...
  >modules, which means you can get (or could get)
various special-purpose
 >plug-ins. That's not too useful unless you have some special applications
...
  and _can get
the right module_. 
 I think simple, but reasonably useful for now at least; I may need fancy
 stuff in the future, but I'd prefer a "beginners" instrument for now.
I'll
...
  go with the Tex 465 then, if I can get one, or
I'll ask them which they
 recommend on a similar level. 
Adrian, I have a Telequipment D54 scope (dual-beam, 20MHz) surplus to
requirement at the moment.  It's in good condition, and it's probably
rather better than most modern low-end "20MHz" scopes (which tend not to
have very good rise times at the top end of their supposed bandwidth).

Was it you who mentioned something about difficulty tinning a soldering
iron?  I wondered if the bit was iron-plated -- they can be a pain to
re-tin if they get corroded.  I found the best thing for that is a small
tin of tip cleaner/tinner; you can get it from RS (cat no 561-533, about
?4) or CPC (cat no SAM-19, ?3.05).

-- 
Pete						Peter Turnbull
						Network Manager
						University of York