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
Received on Thu Aug 23 2001 - 18:30:30 BST