I am 14 and I like to work with electronic circuits all the time. I keep having the need for an oscilloscope, but don't have one because I have always thought they were a waste of money, and I don't have a lot of money so I never got one. I want an old CRT based one and I am wondering where to get one / if anybody has any links. My limit is 140 dollars MAX. Are there any good ones on eBay?

Is this one good?

http://www.ebay.com/itm/Tektronix-2...92483?pt=BI_Oscilloscopes&hash=item2ec8d363e3

 

Tektronix makes good, reliable scopes, so I would say that it will do what it was designed to do. The seller did state that if anything is not in the pictures, then it is not included; so you will need to buy some probes for the scope. The manual is a bonus since it will tell you how to check the accuracy of the scope. The shipping charge does seem to be a little high, but then I haven't shipped a heavy item for some time.

 

Those old Tek scopes are terrific. But there is a risk to buying them. Every one I bought has a problem, necessating a repair job. Some can be fixed, some can't.

I bought one of these: http://www.amazon.com/Precision-2120B-Analog-Oscilloscope-Probes/dp/B00085EX00 Real nice little hobby scope. If you shop around, you can get a much better price than what this site lists.

 

You should be able to pick up a working CRT scope for $25.
Check out your local school, college or university. They may be getting rid of some old scopes.

You have to factor in the price of a pair of probes. New ones are not cheap.

I would expect to pay $50 to $75 for a good working Tektronix 2313 with two probes.

 

I got "tektronix Clone" probes off ebay for about $8/set that work very well.


http://www.ebay.com/itm/Newest-Two-...285?pt=LH_DefaultDomain_0&hash=item231c6dffad



http://www.ebay.com/itm/New-2-X-100...358?pt=LH_DefaultDomain_0&hash=item415f8e34ae

 

What were you interested in using a your scope for?