Scopes and DMMs

[Bob Zimmer]

Now that I finally have enough parts and schematics, I'm ready to try some
building and am looking to buy a scope and a new DMM (I do have a Frequency
Counter and Analog Multimiter).

What I'm wondering is just what features are needed in a scope to calibrate
analog modules.  I don't want to limit myself to just being able to use it
on these (looking for a good general purpose unit?), but don't have the
money for a 1 GHz Tektronix either!  Are features like delayed sweep, 40 MHz
or better speed, cursors, etc. necessary? or simply luxuries?  Back when I
had taken Electronics Courses, they just didn't exist! (Am I dating myself???)

Also, I've noticed that both Protek and B&K sell 4 1/2 digit DMM's with
basic DC accuracy of 0.05%.  The Protek sells for $100 list(???) and the B&K
is discounted to about $180.  I know that for this price, there are many
choices in 3 1/2 digit models with all the bells & whistles and .5% basic DC
accuracy, but am wondering if getting a basic features only, more accurate
unit would be a better choice.  Also if anyone is familiar with Protek, they
sell two versions of their 4 1/2 digit DMM.  One which is portable and the
other a bench unit.  
They appear to have identical specs, but the bench unit is $279 list vs $100
list.  I know that an internal power supply and larger case don't add up to
the $179 difference.  What gives?

Any recommendations???

Bob

  >=== Bob Zimmer -- Philadelphia PA ===<
  >=== bzimmer at voicenet.com          ===<