Mullin said:
sorry, should be handheld or pc-based
It's still not a well-formed question. A good start would be to make a
well-formed sentence, or perhaps even a paragraph; the need for ESP would
decrease. But basically it's going to be hard for anybody to give you any
useful information unless we know what you want the instrument for, whether
you want used or new, what "cheap" means to you, what your level of skill
with the instrument is, whether you have the tools and know-how to calibrate
or repair a used scope, ...
Some Googling through old posts on this newsgroup will give you a sense of
what others have answered to similar questions, and of what kind of
information you need to specify before your question is meaningful.
At present your question is analogous to "any cheap two door or diesel car."